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Sample records for dos lagos andinos

  1. Sensitivity of winter phytoplankton communities from Andean lakes to artificial ultraviolet-B radiation Sensibilidad de comunidades fitoplanctónicas invernales de lagos andinos a la radiación ultravioleta-B artificial

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    E. WALTER HELBLING

    2001-06-01

    Andinos con el objetivo de determinar la sensibilidad de comunidades fitoplanctónicas invernales a la radiación ultravioleta-B (UV-B, 280-320 nm. Los lagos estudiados, Moreno, El Trébol, Nahuel Huapi, Gutiérrez y Morenito, están ubicados la región Patagónica (41° S, 71° W, 800 m de altitud y tienen coeficientes de atenuación variables entre 0,36 m-1 (Lago Moreno y 2,8 m-1 (Lago Morenito. Las muestras se inocularon con carbono marcado (NaH14CO3 y se incubaron en una cámara iluminada (UV-B = 0,35 W m-2, UV-A [320-400 nm] = 1,1 W m-2, y PAR [400-700 nm] = 10,8 W m-2 a 10° C. El fitoplancton se expuso a PAR (radiación fotosintéticamente activa + radiación UV (tubos de cuarzo, y a PAR + UV-A (tubos de cuarzo recubiertos con Mylar-D. La duración total de los experimentos fue de 4 h y se retiraron dos muestras de cada tratamiento cada 1 h. En los Lagos Moreno, El Trébol, Nahuel Huapi y Gutiérrez la inhibición fotosintética aumentó en forma linear con la dosis de UV-B, mientras que en el Lago Morenito esta relación fue débil. Después de recibir una dosis de 1,25 kJ m-2 (UV-B, el fitoplancton del Lago Morenito tuvo la mayor inhibición fotosintética acumulada (44 %, mientras que en los Lagos Moreno, Trébol, Nahuel Huapi y Gutiérrez la inhibición fue de 22, 11, 5 y 1 %, respectivamente. Sin embargo, al final de la incubación, y luego de recibir una dosis de 5 kJ m-2, el fitoplancton más inhibido fue aquel del Lago Moreno (70 %, y el más resistente aquel del Lago Gutiérrez (27 %. La cinética de inhibición fue distinta para cada lago, registrándose una mayor velocidad en los lagos más transparentes y con mayor proporción de células grandes. Los resultados sugieren que, ante un aumento de UV-B (e.g., producto de una disminución de ozono estratosférico, el microplancton de lagos más claros será el más afectado mientras que el pico- y nanoplancton de lagos menos transparentes será el más resistente

  2. Las macrófitas de algunos lagos alto-andinos del Ecuador y su bajo potencial como bioindicadores de eutrofización

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    Benjamin Kiersch

    2004-12-01

    Full Text Available Se estudió la presencia de macrófitas en tres lagos de altoandinos en Ecuador,Lago San Pablo,Laguna La Mica y Lago Cuicocha.Los primeros dos son eutróficos, mientras que el último es un lago de caldera extremadamente oligotrófico.Las especies dominantes en los lagos eutróficos son:Ceratophyllum demersum , Myriophyllum quitense ,Potamogeton illinoensis ,P. striatus y Elodea matthewsii .En el lago oligotrófico están presentes P.pectinatus,P.illinoensi s,y las Characeae Chara rusbyabana ,Ch.globularis y Nitella acuminata .La máxima profundidad para la presencia de macrófitas puede ser usada como un indicador del estado de eutroficación,la cual va desde 5 m en la Laguna Mica a 35 m en el Lago Cuicocha.El valor de la bioindicación de las especies de macrófitas en estos lagos altoandinos es bajo,debido a que solo unas pocas especies están presentes,y algunas de ellas no son específicas para las condiciones ambientales.Macrophytes from some high Andean lakes of Ecuador and their low potential as bioindicators of eutrophication .The occurrence of macrophyte in three high Andean lakes of Ecuador,Lago San Pablo, Laguna La Mica and Lago Cuicocha was recorded in 5-9 transects per lake.The first two lakes are eutrophic, the third is an extremely oligotrophic caldera lake.The dominant species in eutrophic lakes are Ceratophyllum demersum ,Myriophyllum quitense ,Potamogeton illinoensis ,P.striatus and Elodea matthewsii .In the oligotrophic lake P.pectinatus,P.illinoensi s,and the Characeae Chara rusbyana ,Ch.globularis and Nitella acuminata occur.The maximum depth of the macrophyte ’s presence can be used as an indicator of the trophic state,ranging from about 5 m in Mica to 35 m in Cuicocha.The bioindication value of the macrophyte species in these high Andean lakes is low,because few species occur and because some of them are not specific to environmental conditions.Rev.Biol.Trop.52(4:829-837.Epub 2005 Jun 24.

  3. Evaluación de la eficiencia fotosintética del fitoplancton en un lago amazónico (Lago Boa y en un lago andino (Lago Guatavita Evaluation of the phytoplanktonic photosynthetic efficiency in an Amazon Lake (Lake Boa and in an Andean Lake (Lake Guatavita

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    Gabriel A. Pinilla

    2006-01-01

    Full Text Available La relación entre la fluorescencia variable y la fluorescencia máxima (Fv/Fm de las comunidades de algas se ha utilizado comúnmente como una medida de la eficiencia fotosintética del fitoplancton. Dicha eficiencia puede estar afectada por la localización de los ambientes acuáticos en distintas provincias limnológicas. En este trabajo se quiso establecer la diferencia en la relación Fv/Fm entre el lago Boa (150 msnm, Amazonía colombiana y el lago Guatavita (3000 msnm, cordillera oriental de los Andes colombianos. Los promedios de las eficiencias medidas fueron en general bajos (0,212 a 0,367 y 0,089 a 0,32 en los lagos Boa y Guatavita, respectivamente, lo que señala estrés fisiológico para las algas. La eficiencia fue mayor en aguas intermedias y presentó cambios fuertes entre épocas de muestreo y entre ecosistemas. En aguas superficiales se presentó fotoinhibición, la cual fue más fuerte en Guatavita. La eficiencia fotosintética fue menor en el lago andino debido posiblemente a diferencias climáticas, de altura sobre el nivel del mar y de estratificación. Durante los ensayos de laboratorio se observó que la eficiencia disminuyó con el tiempo, lo cual pudo deberse a una aclimatación de las algas a la oscuridad. Los datos de laboratorio confirmaron que el fitoplancton epilimnético del lago Guatavita estuvo fotoinhibido en la época de estratificación.Commonly relation between variable fluorescence and maximum fluorescence (Fv/Fm of the algae community has been utilized like a measure of the phytoplanktonic photosynthetic efficiency. Such efficiency can be affected by the water bodies' location in different limnological provinces. The goal of this work was to establish the differences in the Fv/Fm rate between Lake Boa (150 masl Colombian Amazon and Lake Guatavita (3000 masl, East Range in the Colombian Andes. In general, averages of the photosynthetic efficiencies were low (0.212 to 0.367 and 0.089 to 0.32 in lakes Boa and

  4. Nodulação em cultivares de feijão dos conjuntos gênicos andino e meso-americano

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    Franco Marília Caixeta

    2002-01-01

    Full Text Available O objetivo deste trabalho foi determinar a capacidade de nodulação e a especificidade de feijão (Phaseolus vulgaris L. dos conjuntos gênicos andino e meso-americano submetidos a inóculo de Rhizobium. O experimento foi estabelecido em parcelas subdivididas em blocos ao acaso, com quatorze cultivares de feijão e três estirpes de Rhizobium (R. etli KIM 5, R. etli CIAT 632 e R. tropici CIAT 899. Somente as cultivares andinas WAF 15, WAF 7, Mineiro Precoce, WAF 6 e Antioquia 8 apresentaram especificidade na nodulação. Em relação à massa seca dos nódulos, houve diferenças significativas dos tratamentos de inoculação nas cultivares andinas WAF 15, WAF 7, WAF 6 e Diacol Andino, e na cultivar meso-americana Ouro Negro. Nenhuma das cultivares restringiu a nodulação, embora tenham sido verificadas diferenças de até 53 e 103 vezes no número e massa de nódulos por planta, respectivamente. Considerando todas as cultivares e estirpes de rizóbio, WAF 15 foi a cultivar com melhor desempenho em número e massa nodular. WAF 6 foi a cultivar de pior desempenho, chegando quase ao nível de restrição da nodulação com a estirpe R. etli CIAT 632.

  5. Estructura comunitaria de diatomeas presentes en los sedimentos superficiales de ocho lagos andinos de Chile central Diatoms community structure in superficial sediments of eight Andean lakes of central Chile

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    INGRID E ALVIAL

    2008-03-01

    Full Text Available En este trabajo se analizó la estructura comunitaria de diatomeas depositadas en los sedimentos superficiales de ocho lagos andinos chilenos ubicados entre los 32°49' y 38°48' S. Se encontró un total de 99 taxa de diatomeas, distribuidos en 48 géneros. Del total de taxa, 74 fueron identificados a nivel de especie siendo todos ellos cosmopolitas a excepción de Eunotia andinofrequens, Gomphonema punae, Pinnularia araucanensis y Pinnularia acidicola, entre otras, que están descritos solo para el Hemisferio Sur. Por otro lado, las muestras analizadas presentaron distinta composición florística de diatomeas. De esta manera, en los ensambles diatomológicos depositados en los sedimentos de las lagunas de altura Ocho, Huifa, Ensueño y Negra ubicadas sobre los 2.860 m del nivel del mar, abundaron especies bentónicas, típicas de aguas oligotróficas y acidas como Achnanthidium exiguum, Achnanthidium minutissimum, Encyonema minutum, Pinnularia acidicola y Planothidium lanceolatum. En los ensambles diatomológicos de los lagos Galletué, Icalma y Laja, ubicados bajo los 1.360 m del nivel del mar, abundaron diatomeas planctónicas, características de aguas alcalinas y mesotróficas como Asterionella formosa, Aulacoseira distans, Aulacoseira granulata, Cyclotella stelligera y Rhopalodia gibbaIn this research the taxonomic structure of diatoms in sediments of high mountain lakes was studied. These lakes are located in Chile between 32°49' and 38°48' S in the Andean Cordillera. A total of 99 diatom taxa distributed in 48 genera were identified and all this taxa are cosmopolitan excepting a Eunotia andinofrequens, Gomphonema punae, Pinnularia araucanensis and Pinnularia acidicola, which are know only for the Southern Hemisphere. The assemblages of diatoms were different in the studied lakes. So the high mountain lakes Ocho, Huifa, Ensueño and Negra, dominated benthic diatoms which are typical of oligotrophic and acid waters as Achnanthidium

  6. Use of Remote Sensing and Local Knowledge for Geoconservation of Regiao dos Lagos, Brazil

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    Avelar, S.; Vasconcelos, G.; Mansur, K. L.; Anjos, S. C.

    2013-12-01

    A series of lagoons can be found along the coastline of Rio de Janeiro, in the so-called Regiao dos Lagos. The lagoons differ in size, physicochemical, sedimentological and biological characteristics. Rare examples of litifying microbialites that produce stromatolites, the oldest fossils on Earth, can be found living in this lagoon system. The occurrence of stromatolites in the region is of great scientific interest because it enables the study of possible analogues of the earliest life on Earth. However, this region has been suffering from intense human activities and degradations. Geoconservation planning requires an assessment of the characteristics of the region and its potential threats. The primary goal of this study is to assess physical environmental changes and anthropogenic impacts over the last four decades in Regiao dos Lagos. Using a broad integrative assessment combining remote sensing, GIS, field studies and local knowledge of communities, land-cover and land-use classes were identified, as well as the main human activities impacting the environment. The seasonal and weekend tourism and urban sprawl in this coastal area of Rio de Janeiro triggers the occupation of new areas and the removal of natural vegetation, especially on lagoon margins. This disorderly occupation by an ever increasing population, with both legal and illegal constructions and the subsequent overload of the local infrastructure, e.g. increase of electrical energy consumption, volume of vehicles, pollution in air, water and soil and problems with water supply and wastewater treatment, are hastening the gradual degradation of the lake ecosystem. The main driving forces to environmental changes over the last four decades in Regiao dos Lagos were the change of dense vegetation, saline and bare soil classes into built-up areas, adding to the poor waste treatment and inadequate sewage disposal. This analysis provides a basis for a better control of anthropogenic impacts and

  7. Reproducción identitaria y social en las redes translocales de migrantes de dos pueblos andinos

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    Malengreau, Jacques

    2012-01-01

    Se analizan de manera comparativa —según su destino y según su origen— las estrategias adoptadas por los migrantes de dos comunidades andinas de distintas regiones del Perú en su manejo de recursos sociales, culturales y materiales de su entorno extendido en el cuadro de su experiencia translocal. Estas estrategias están fundadas en una forma paralela. Por una parte, sobre una extensión de los lazos domésticos del pueblo originario, sobre todo a través de una continuidad transgeneracional bas...

  8. Reproducción identitaria y social en las redes translocales de migrantes de dos pueblos andinos

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    Jacques Malengreau

    2008-12-01

    Full Text Available Se analizan de manera comparativa —según su destino y según su origen— las estrategias adoptadas por los migrantes de dos comunidades andinas de distintas regiones del Perú en su manejo de recursos sociales, culturales y materiales de su entorno extendido en el cuadro de su experiencia translocal. Estas estrategias están fundadas en una forma paralela. Por una parte, sobre una extensión de los lazos domésticos del pueblo originario, sobre todo a través de una continuidad transgeneracional basada en la descendenciacolateral tío(a – sobrino (a entre el pueblo originario y el lugar de inmigración, lo que implica un debilitamiento de las identidades colectivas supradomésticas originarias. Y, por otra parte, sobre la construcción de lazos vecindarios nuevos interétnicos, lo cual reinventa un modelo de solidaridad social en el lugar de inmigración. Estas estrategias —que combinan la jerarquización, el clientelismo, así como la reciprocidad y la redistribución— implican una reinterpretaciónde las normas vehiculadas por el modelo empresarial «liberal»,productivista, competitivo y consumista acondicionado a partir de un mundo extranjero que se manifiesta en una forma transnacional y transregional. En consecuencia, se pueden ver de modo comparativo las estrategias seguidas por los migrantes de ambos pueblos originarios como un desarrollo, tanto de rasgos comunes, como de particularidades que son ligadas, no solamente a las experiencias sociohistóricas y a las herencias culturales propias de cada uno de los pueblos, sino también al tipo de destino escogido por ellos; porejemplo, Lima metropolitana, los centros urbanos regionales y los valles tropicales del oriente. -- This article contrasts strategies adopted by migrants from two Andeancommunities located in different regions in Peru, in their useof social, cultural, and material networks, taking into consideration the place they settle in and where they come from, their

  9. Ecomicrobiology and microbial assimilative capacity of the oligotrophic Andean Lake Laja, Chile Ecomicrobiología y capacidad asimilativa microbiana del lago oligotrófico andino Laja, Chile

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    BERNHARD KARRASCH

    2011-09-01

    organic loads as well as global change (temperature and precipitation changes could lead to significant changes in the ecology of Lake Laja.La gran presión generada por el desarrollo socioeconómico del sur de Chile, está causando cada vez más un mayor impacto en los lagos y ríos allí presentes. Sin embargo, el conocimiento de la estructura ecológica y la capacidad microbiana de autodepuración de los cuerpos de agua lacustres es escasa, pero esencial para un futuro uso sostenible de los recursos agua y suelo. Se estudió el lago Laja, por ser un cuerpo de agua muy afectado por la extracción de agua para la generación de energía hidroeléctrica y el riego. Como es característico de la región andina, el lago Laja es oligotrófico limitado por nutrientes nitrogenados. Se encontraron bajas concentraciones de clorofila a y carbono orgánico particulado (POC, así como bajas abundancias y biomasa de bacterias (principalmente ultramicrobacteria y de flagelados heterotróficos. Interrelaciones tróficas débiles se determinaron de la relación bacterias y flagelados heterotróficos. Para las diez enzimas extracelulares estudiadas (fosfatasa, leucina-, arginina-, glicina- y tirosina-aminopeptidasa, a-, b-D-glucosidasa, a-, b-D-galactosidasa, N-acetyl-b-D-glucosaminidasa, con la excepción de α-β-glucosidase, se analizó un amplio rango de actividad de degradación sobre la materia orgánica. Probablemente, debido a la limitación de nitrógeno, el N-orgánico hidrolizado por enzimas extracelulares alcanzó una actividad promedio de 45 %, comparada con otros estudios en aguas oligotróficas. El posible efecto de la limitación de N en la actividad enzimática extracelular, fue más pronunciado en las tasas de la actividad enzimática extracelular específicas, las cuales excedieron en un factor promedio de dos a las de otros cuerpos de aguas oligotróficos. En general, la actividad de todas las enzimas extracelulares microbianas estudiadas resultaron estar dominadas

  10. A cor dos têxteis Andinos: análise da cor em têxteis da cultura milenar de Paracas

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    Rodrigues, Isa Santos

    2008-01-01

    Dissertação apresentada na Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa para obtenção do grau de Mestre em Conservação e Restauro Área de Têxteis O presente trabalho insere-se num projecto denominado “The color of the Andean Textiles”, que resulta de uma colaboração entre a Faculdade de Ciência e Tecnologia, da Universidade Nova de Lisboa (FCT-UNL) e o Museum of Fine Arts (MFA), de Boston. Os corantes dos têxteis da cultura de Paracas, que se desenvolveu na costa Sul d...

  11. El Derecho Administrativo del Sistema Comunitario Andino

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    Jorge Enrique Santos Rodríguez

    2013-01-01

    Una de las tendencias contemporáneas del Derecho Administrativo es el reconocimiento de su existencia más allá de las fronteras de un Estado. Bajo esa premisa, se busca demostrar que en la Comunidad Andina de Naciones se configuran los elementos suficientes para afirmar que existe un Derecho Administrativo Comunitario Andino, en la medida en que de las normas andinas se desprende la existencia de una función administrativa andina, una organización administrativa al seno del Sistema Andino de ...

  12. El Derecho Administrativo del Sistema Comunitario Andino

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    Jorge Enrique Santos Rodríguez

    2013-12-01

    Full Text Available Una de las tendencias contemporáneas del Derecho Administrativo es el reconocimiento de su existencia más allá de las fronteras de un Estado. Bajo esa premisa, se busca demostrar que en la Comunidad Andina de Naciones se configuran los elementos suficientes para afirmar que existe un Derecho Administrativo Comunitario Andino, en la medida en que de las normas andinas se desprende la existencia de una función administrativa andina, una organización administrativa al seno del Sistema Andino de Integración, un sistema de fuentes administrativas andina y un contencioso administrativo comunitario.

  13. El español andino

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    Arboleda Toro Rubén

    2000-06-01

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    Existe una variedad del español conocida en el mundo académico como español andino, que, junto a la zona serrana del noroeste argentino, Bolivia, Perú y Ecuador, se habla en el extremo suroccidental de Colombia. Son pocos y de limitada expansión hasta ahora los estudios referidos a la parte colombiana; tal vez por eso en el mundo académico no existe suficiente conciencia de su filiación al español andino. Desde el Departamento de Lingüística de la Universidad Nacional de Colombia adelantamos un estudio que, tras una delimitación previa de dicha variedad, evidencia la filiación con datos histórico-geográficos y lingüísticos, revisa los estudios realizados, recopila muestras de habla de la región, destaca rasgos dialectales fundamentales y los analiza en el marco de estudios del español andino internacionalmente reconocidos, cuando éstos los contemplan. Presentamos acá algunas consideraciones preliminares generales.

  14. GERENCIAMENTO DE EFLUENTES DE SERVIÇO DE RADIOLOGIA: INQUÉRITO REALIZADO EM TRÊS CENTROS DE SAÚDE DA REGIÃO DOS LAGOS ESTADO DO RIO DE JANEIRO

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    João Marcos Rodrigues dos SANTOS

    2017-07-01

    Full Text Available A radiologia é uma área muito importante para as ciências biomédicas. Apesar dos benefícios que os exames radiológicos oferecem, muito têm se discutido sobre o destino dos efluentes gerados por este tipo de atividade. Os problemas ambientais ocasionados por essas substâncias são diversos: contaminação de rios, lagos e lençóis freáticos além da ausência de um tratamento adequado dos resíduos por parte dos geradores. O objetivo desta pesquisa foi realizar um diagnóstico sobre o gerenciamento dos resíduos em serviços de radiologia em três centros de saúde da Região dos Lagos estado do Rio de Janeiro. As informações foram obtidas através de entrevistas realizadas por questionário semiestruturado direcionado aos responsáveis técnicos. Foram obtidas informações sobre: o volume total de líquido produzido, a forma de armazenamento, os métodos de descarte, dentre outras. Após o tratamento dos dados, os mesmos foram confrontados com a literatura, mantendo-se a imparcialidade para o melhor conhecimento possível sobre o tema. Os dados da pesquisa revelaram uma não conformidade com a legislação e parâmetros estabelecidos pelas instituições fiscalizadoras. De uma forma mais específica, observou-se uma certa dificuldade em relação ao gerenciamento dos líquidos residuais, evidenciando a possibilidade de riscos para a saúde e meio ambiente. Uma preocupação evidenciada na pesquisa está relacionada ao destino das películas inutilizadas, observou-se pouca preocupação em relação a este tipo de descarte. Conclui-se que o diagnóstico realizado sinaliza pontos preocupantes sobre o gerenciamento dos resíduos nos serviços de radiologia. A pesquisa deixa uma contribuição para futuras discussões sobre o tema.     

  15. EVALUACIÓN DE DOS TRATAMIENTOS FOTOPERIÓDICOS EN CRISANTEMO (Dendranthema grandiflorum (Ramat. Kitam., BAJO CONDICIONES DEL INTERTRÓPICO ANDINO ALTO EVALUATION OF TWO PHOTOPERIOD TREATMENTS IN CHRYSANTHEMUM (Dendranthema grandiflorum ((Ramat. Kitam., UNDER CONDITIONS OF HIGH ANDEAN INTERTROPIC

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    Fáber de Jesús Chica Toro

    2005-12-01

    Full Text Available En la floricultura colombiana, cerca del 14 % de los costos de producción del crisantemo o pompón (Dendranthema grandiflorum (Ramat. Kitam., está representado por la luz complementaria requerida para controlar su floración. Con el fin de encontrar un protocolo que hiciera uso de un menor suministro de luz, en este trabajo se compararon los efectos de dos esquemas de complemento lumínico nocturno sobre algunas características precosecha y poscosecha en dos variedades comerciales tipo spider de crisantemo: Super White y Super Yellow. El esquema testigo de suplemento lumínico nocturno consistió en aportar la adición durante 28 días para la variedad Super Yellow, y 26 para la variedad Super White. La propuesta alternativa de adición lumínica nocturna consistió en interrumpir el estímulo durante una noche completa cada dos días. Tal disminución del estímulo lumínico, en aproximadamente un 30 %, no afectó el crecimiento ni las características poscosecha de las variedades evaluadas.In Colombian floriculture, nearly 14% of the production costs of chrysanthemum (Dendranthema grandiflorum (Ramat. Kitam. consists of the additional lighting required to control its flowering. In order to find a protocol that consumes a lower amount of electricity, this study compared the effects of two supplementary noctural lighting schemes on several preharvest and postharvest characteristics in two commercial varieties of chrysanthemum: Super White and Super Yellow. The control nocturnal lighting scheme consisted of providing the supplemental lighting during 28 days for the Super Yellow variety and during 26 days for the Super White variety. The alternative nocturnal lighting scheme consisted of interrupting the stimulus during one complete night every two days. This approximately 30% reduction in light stimulation did not affect either growth or postharvest characteristics of the varieties evaluated.

  16. Efecto de la estructuración por macrófitas y por recursos alimentarios en la distribución horizontal de tecamebas y rotíferos en un lago andino patagónico Effect of macrophytes and food resources on the horizontal distribution of testate amoebae and rotifers in an Andean-Patagonian lake

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    MARCELA BASTIDAS-NAVARRO

    2007-09-01

    Full Text Available La presencia de macrófitas en la zona litoral lacustre trae aparejada condiciones diferentes con respecto a la zona pelágica, en particular en la disponibilidad de recursos. Por esta razón, las zonas litorales pueden presentar una mayor biodiversidad. En este trabajo se analizó la distribución horizontal de tecamebas y rotíferos en el lago Escondido (Argentina, vinculándola con los recursos alimentarios presentes en las diferentes zonas. Se tomaron muestras para el estudio del fitoplancton y zooplancton durante verano y primavera (2001-2003 en cuatro estaciones litorales y una pelágica. Se realizó el recuento de rotíferos y tecamebas y se determinó la abundancia y la biomasa fitoplanctónica. Los recursos alimentarios fueron clasificados en nanoplancton ( 20 μm. El nanoplancton estuvo compuesto por nanoflagelados y el fitoplancton de red por diatomeas, cianófitas y clorófitas. La biomasa de estas fracciones varió significativamente, observándose una predominancia del nanoplancton en la zona pelágica y del fitoplancton de red en la zona litoral. Los mayores valores de riqueza y de diversidad de tecamebas y rotíferos fueron observados en las estaciones litorales, no hallándose diferencias significativas entre las zonas con diferentes macrófitas. El análisis de ACC evidenció cuatro grupos. Por un lado, Keratella cochlearis, Synchaeta spp., Polyarthra vulgaris y Collotheca mutabilis, asociadas a las muestras pelágicas, se relacionaron con una alta abundancia de nanoplancton. Por otro lado, los rotíferos Trichocerca spp., Lecane spp. y Euchlanis spp., y las tecamebas Dijflugia pyriformis y Trinema enchelys se relacionaron con el fitoplancton de red y las muestras litorales. Además, un tercer grupo reunió a especies (Lecane spp. y Arcella spp. presentes en ambas zonas y en relación con una baja abundancia del fitoplancton de red. Por último, el rotífero Synchaeta spp. y las muestras pelágicas de primavera se relacionaron

  17. O uso turístico dos reservatórios de hidrelétricas: estudo dos terminais turísticos no Lago de Itaipu, Paraná, Brasil

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    Pertille, Iara

    2007-01-01

    Este trabalho tem como objetivo investigar o turismo em reservatórios de hidrelétricas, os tipos de atividades recreativas que são desenvolvidas, qual a infra-estrutura turística existente, quem são os visitantes e, principalmente, determinar a qualidade ambiental destas áreas destinadas ao turismo e recreação na margem do Lago de Itaipu. Foram estudados os oito terminais turísticos na margem brasileira do reservatório, localizado no rio Paraná, no oeste do estado do Paraná. Em uma primeira e...

  18. Dualismo estructural andino y espacio novelesco arguediano

    Directory of Open Access Journals (Sweden)

    2002-01-01

    Full Text Available DUALISME STRUCTUREL ANDIN ET ESPACE ROMANESQUE ARGUÉDIEN. À la lumière des principes dualistes structuraux andins yanantin et masintin, mis en évidence à partir des années soixante dix, on propose une étude de l’espace dans les romans de José María Arguedas et en particulier Yawar fiesta. On utilise, dans ce roman, le principe de relation complémentaire géographique et social, yanantin, pour expliquer les différentes origines attribuées au taureau Misitu et le comportement des communautés à son égard. Le principe masintin implique identité, solidarité et équivalence entre les membres qu’il unit. La combinaison de ces deux principes est utilisée pour proposer une explication de la dynamique des “batailles rituelles” dont le Pukllay est une modalité. On met l’accent sur Yawar fiesta, où le Turupukllay est représenté, en utilisant cette interprétation. A la luz de los principios dualistas estructurales andinos yanantin y masintin, evidenciados a partir de los años setenta, se propone un estudio del espacio en las novelas de José María Arguedas y en particular en Yawar fiesta. Se utiliza en esta novela el principio de relación complementaria geográfica y social, yanantin, para explicar los diferentes orígenes atribuidos al toro Misitu y el comportamiento de las comunidades con él. El principio masintin implica identidad, solidaridad y equivalencia entre los miembros que une. Se utiliza la combinación de dichos principios para proponer una explicación de la dinámica de las “batallas rituales” de las que el Pukllay es una modalidad. Se enfoca Yawar fiesta, en la que el Turupukllay está representado, utilizando esta interpretación. ANDEAN STRUCTURAL DUALISM AND ARGUEDIEN NOVELISTIC SPACE. A study of the fictional space of the novels of José María Arguedas, in particular Yawar Fiesta, is proposed in terms of the dual Andean structural principles, yanantin and masintin, which have been recognized since the

  19. Gênese e Morfologia de Estruturas Sedimentares Induzidas por Atividade Microbiana (MISS em Sedimentos da Lagoa Vermelha (Região dos Lagos – Rio de Janeiro

    Directory of Open Access Journals (Sweden)

    Lorena da Fonseca Sampaio

    2015-01-01

    Full Text Available dimentos. O desconhecimento dos critérios que permitem a identificação dessas estruturas no registro geológico dificulta seu amplo reconhecimento, sendo por vezes confundidas com estruturas físicas de deposição e erosão. Historicamente, a Lagoa Vermelha é reconhecida por estudos biológicos, mineralógicos, geoquímicos e isotópicos, relacionados a estromatólitos e esteiras microbianas. Contudo, as estruturas sedimentares induzidas por atividade microbiana nunca foram objeto de estudo. Dessa forma, o presente estudo objetiva a análise e caracterização das MISS que ocorrem nos sedimentos da Lagoa Vermelha, reconhecendo os principais fatores biossedimentológicos envolvidos em sua gênese. Foi possível a distinção de onze estruturas resultantes dos processos de crescimento microbial (estrutura de nivelamento laminada, bioestabilização (gretas de dessecamento; mat curls; mat chips, metabolismo da esteira (biolaminito; estromatólito; estromatólito biscuit; nódulo trombolítico, binding, baffling e trapping e estruturas resultantes de mais de uma atividade microbial interagindo com a dinâmica sedimentar (wrinkles; estrutura de descolamento; petees. Análises petrográficas permitiram o reconhecimento dessas estruturas em microescala e de outras feições organossedimentares associadas à atividade microbial. Os resultados gerados permitem a melhor compreensão da interação entre processos microbiais e fatores ambientais atuantes na formação de estruturas sedimentares induzidas por micro-organismos, bem como, auxiliam seu reconhecimento no registro geológico em sucessões continentais e marinhas.

  20. El lago de tota

    OpenAIRE

    Borrero H., José I.

    2012-01-01

    Puesto que el lago de Tola constituye hoy en día la única fuente de abastecimiento de agua para nuestra máxima industria nacional, como es Acerías de Paz del Río, porque esta industria depende en un ciento por ciento del lago de Tota para su desarrollo actual y ensanches futuros, según concepto de sus directivas además por ser este un lugar de incomparable belleza al cual debe dársele la importancia que merece, se ha resuelto escribir estas líneas, en las cuales el lector encontrará esbozados...

  1. Lagos Historical Review

    African Journals Online (AJOL)

    The Lagos Historical Review is an international and interdisciplinary journal publishing papers with a historical focus. The journal generates and participates in debates to advance the discipline of history and promote its relevance to development. The journal aims to serve the academic community with a bias towards ...

  2. Lagos Notes and Records

    African Journals Online (AJOL)

    Lagos Notes and Records is an annual, interdisciplinary journal of the humanities. It is devoted to the publication of well-researched articles in all the subjects in the Arts, Social Sciences, and Law. In addition to original articles, the journal publishes review articles, brief accounts of work in progress, notes and comments on ...

  3. Abundância e distribuição das larvas de peixes no Lago Catalão e no encontro dos rios Solimões e Negro, Amazonas, Brasil Abundance and distribution of fish larvae in Catalão Lake and in the confluence of the Solimões and Negro River, Amazon, Brazil

    Directory of Open Access Journals (Sweden)

    Rosseval Galdino Leite

    2006-12-01

    Full Text Available A abundância e a distribuição mensal de larvas de peixes no Lago Catalão, situado próximo ao encontro dos rios Solimões e Negro, foram avaliadas entre os meses de janeiro e maio de 2001. As amostras foram coletadas com uma rede de ictioplâncton cônico-cilíndrica (350 µm de malha, Ø 0,3 m e 2 m de comprimento, com um fluxômetro acoplado na boca da rede para a obtenção do volume de água filtrado pela mesma. As variáveis categóricas consideradas foram: posição no lago (margem e centro, profundidade (superfície e fundo e turno (diurno e noturno; tendo sido realizada a Análise Fatorial de Correspondência (AFC usando a densidade larval (larvas. m-3 como variável resposta e os meses como descritores. A AFC discriminou a ocorrência de larvas por unidade experimental entre o mês de janeiro e os demais meses, com 58,15% de inércia, e a densidade larval mudou conforme a posição no lago e o período do dia. A maior parte das larvas era protolarva e alimentava-se na margem, tanto na superfície quanto no fundo do lago. Concluiu-se que o Lago Catalão é um importante berçário para as larvas dos peixes que desovam no rio Solimões e também para as larvas dos peixes que desovam no próprio lago.The abundance and monthly distribution of fish larvae in Catalão Lake, situated near the confluence of the Solimões and Negro River was evaluated between January and May 2001. The samples were obtained using a conical plankton net (350 µm, Ø 0.3, 2 m long, with a flow meter attached to the opening of the net. The categorical variables were: position in the lake (margin and center, period of the day (day and night and depth (surface and bottom. The analysis was made with Fatorial Correspondence Analyses (FCA using the larval density (larvae.m-3 as answer variable and the months as descriptors. The feeding activity of larvae was also studied. Most of them were protolarvae feeding in the margin of the lake, on the surface as well as on

  4. Conhecimento dos moradores da comunidade de Boas Novas, no Lago Janauacá - Amazonas, sobre os hábitos alimentares dos peixes da região Regional fish diet knowledge of the Boas Novas community inhabitants on the lake Janauacá - Amazonas, Brazil

    Directory of Open Access Journals (Sweden)

    Alexandre Milaré Batistella

    2005-01-01

    Full Text Available A pesca na Amazônia é uma das atividades mais antigas e importantes; entretanto a atividade pesqueira tem passado por um rápido processo de modernização. Os moradores da comunidade de Boas Novas, no Lago do Janauacá AM são, em sua maioria, pescadores-lavradores. No presente trabalho procedeu-se um levantamento de aspectos etnoictiológicos através de entrevistas semi-estruturadas com o objetivo de relacionar a dieta das espécies de peixes citadas na literatura e pelos moradores da comunidade de Boas Novas e a forma com que adquiriram tal conhecimento. Houve correlação de 83% entre as informações dos pescadores e as encontradas na literatura. A maioria dos informantes adquiriu esse conhecimento através da observação na natureza, do tipo de isca que se usa para cada espécie, tratando os peixes ou informados por outras pessoas; havendo diferenças entre homens e mulheres.Fishing in Amazônia is one of the oldest and most important activities; however, fishing has undergone a rapid process of modernization. The formers inhabitants of Boas novas community on the Lake of Janauacá - AM are mostly fisherman. In the present work a recording of ethnoichthyologic aspects was conducted through semi-structured interviews aiming to relate the fish diet mentioned in the literature and by community's inhabitants of Boas Novas, and how they acquired such knowledge. There was a correlation of 83% between the fishermen information and the literature. Most of the informants acquired their knowledge through observing nature, bait type used for each species, fish with respect to this preparing or information received from other people; there are differences between men and women knowledge.

  5. El Lago de Tota

    Directory of Open Access Journals (Sweden)

    Borrero H. José I.

    1963-06-01

    Full Text Available Puesto que el lago de Tola constituye hoy en día la única fuente de abastecimiento de agua para nuestra máxima industria nacional, como es Acerías de Paz del Río, porque esta industria depende en un ciento por ciento del lago de Tota para su desarrollo actual y ensanches futuros, según concepto de sus directivas además por ser este un lugar de incomparable belleza al cual debe dársele la importancia que merece, se ha resuelto escribir estas líneas, en las cuales el lector encontrará esbozados en la forma más sucinta posible una serie de hechos que a no dudar todos hemos observado al visitar el lago. No se pretende que este pequeño escrito abarque todo el problema que es de por sí muy vasto y que posiblemente ha sido tratado ya antes con mayor propiedad, pero sí se espera que produzca en cada uno de los lectores una reacción que sea lo suficientemente grande para que logre convertirlos en admiradores de Tota por consiguiente en sus perennes defensores. No tratamos tampoco de inculpar a nadie y menos a ninguna de las entidades nacionales responsables de la conservación de nuestros recursos naturales, sino simplemente de alertar a todos los directivos de esas entidades para que de común acuerdo logremos salvar el Lago de Tota.

  6. The Seis Lagos Carbonatite Complex

    International Nuclear Information System (INIS)

    Issler, R.S.; Silva, G.G. da.

    1980-01-01

    The Seis Lagos Carbonatite Complex located about 840 Km from Manaus, on the northwestern part of the Estado do Amazonas, Brazil is described. Geological reconnaissance mapping by Radam Project/DNPM, of the southwestern portion of the Guianes Craton, determined three circular features arranged in a north-south trend and outcroping as thick lateritic radioactive hills surrounded by gneisses and mignatites of the peneplained Guianense Complex. Results of core drilling samples analysis of the Seis Lagos Carbonatite Complex are compared with some igneous rocks and limestones of the world on the basis of abundance of their minor and trace elements. Log-log variation diagram of strontium and barium in carbonatite and limestone, exemplifield by South Africa and Angola carbonatites, are compared with the Seis Lagos Carbonatite Complex. The Seis Lagos Carbonatite Complex belongs to the siderite-soevite type. (E.G.) [pt

  7. El impacto del TLC frente al derecho comunitario andino

    Directory of Open Access Journals (Sweden)

    Marcel Tangarife Torres

    2006-11-01

    Full Text Available En esta conferencia analiza el impacto del Tratado de Libre Comercio que se celebrará entre la República de Colombia y los Estados Unidos de Norteamérica frente al Derecho Comunitario Andino, con gran importancia en los temas relacionados con la propiedad intelectual. Adicional a lo anterior se suma un aspecto trascendental y es la supervivencia de la Comunidad Andina de Naciones y en este sentido se cuestiona la coexistencia de las normas comunitarias en relación con las previstas en el Tratado de Libre Comercio. De esta manera, se examina el marco constitucional del Tratado de Libre Comercio y del Acuerdo de Cartagena, para así determinar las características que tienen esta clase de tratados y con ello establecer el nivel jerárquico que le corresponden dentro del ordenamiento jurídico Colombiano. Finalmente se observa la prevalencía de las normas del Acuerdo de Cartagena y el Tratado de Libre Comercio o viceversa, para con ello encontrar soluciones frente a los posibles conflictos de normas que se pueden presentar por la coexistencia de dichas normatividades.

  8. El impacto del TLC frente al derecho comunitario andino

    Directory of Open Access Journals (Sweden)

    Marcel Tangarife Torres

    2006-01-01

    Full Text Available En esta conferencia analiza el impacto del Tratado de Libre Comercio que se celebrará entre la República de Colombia y los Estados Unidos de Norteamérica frente al Derecho Comunitario Andino, con gran importancia en los temas relacionados con la propiedad intelectual. Adicional a lo anterior se suma un aspecto trascendental y es la supervivencia de la Comunidad Andina de Naciones y en este sentido se cuestiona la coexistencia de las normas comunitarias en relación con las previstas en el Tratado de Libre Comercio. De esta manera, se examina el marco constitucional del Tratado de Libre Comercio y del Acuerdo de Cartagena, para así determinar las características que tienen esta clase de tratados y con ello establecer el nivel jerárquico que le corresponden dentro del ordenamiento jurídico Colombiano. Finalmente se observa la prevalencía de las normas del Acuerdo de Cartagena y el Tratado de Libre Comercio o viceversa, para con ello encontrar soluciones frente a los posibles conflictos de normas que se pueden presentar por la coexistencia de dichas normatividades.

  9. Cuando pobreza y género confluyen en el contexto educativo rural andino

    Directory of Open Access Journals (Sweden)

    Beatriz Alvarado

    2010-12-01

    Full Text Available A pesar de haberse expandido las oportunidades educativas en el Perú andino durante las dos últimas décadas, la educación rural aún presenta problemas crónicos como una inadecuada inclusión de la niña y la joven en el sistema educativo. El mercado laboral tampoco les ofrece un panorama esperanzador luego de culminar la escuela, si tienen la posibilidad de hacerlo. Este artículo analiza los factores socio-económicos y educativos que impactan la permanencia o fracaso escolar de la joven andina en el Perú rural. Se señalan tres temas emergentes en el análisis y reflexión de esta realidad: brechas de género en el contexto educativo, pobreza y ruralidad así como políticas sensibles al género. Se concluye con sugerencias concretas para la toma de acciones inmediatas que tengan en cuenta la inclusión de todas las voces en la sociedad. Despite the fact that Andean Peru has expanded educational opportunities during the last two decades, rural education still presents serious problems as an inappropriate inclusion of girls and young women into the system of education. Moreover, the labor market does not offer to them an encouraging panorama after graduating from school, even if they have the chance to do so. This article analyzes the educational and socioeconomic factors that strike the permanence or school failure of young women´s in Peruvian rural. Three emerging topics are analyzed and considered on this context: gender gaps in the educational context, poverty and rurality, and gender-sensitive policies. The article draws some conclusions providing concrete recommendations for an urgent action-taking for the inclusion of all the voices in the society.

  10. Cuidado de enfermería al niño andino hospitalizado, Chiclayo 2011

    OpenAIRE

    Villarreal Ortiz, Yolanda Beatriz

    2012-01-01

    La presente investigación cualitativa, con abordaje de estudio de caso, asumió como objetivos: describir y analizar los cuidados que brinda la enfermera(o) al niño andino hospitalizado en el servicio de pediatría del Hospital Regional Docente Las Mercedes. Sus bases teóricas se sustentaron en Leininger, Hiebert, entre otros. El escenario lo conformó el servicio de pediatría, participando en el estudio 8 enfermeras y 4 padres de familia de los niños andinos aplicándose una entrevista semiestru...

  11. Colonial land policies in Lagos | Davies | Lagos Historical Review

    African Journals Online (AJOL)

    Land policies in colonial Lagos were variegated. They alternated between freehold at inception of colonialism in 1861, and customary tenure at the beginning of the twentieth century and later coalesced into a combination of both. The variegated nature of the colonial government's land policies created a lot of confusion in ...

  12. Lagos Journal of Library and Information Science: Contact

    African Journals Online (AJOL)

    Principal Contact. Adebambo Oduwole (Ph.D) Editor-in-Chief Lagos State University Library, Ojo, Lagos Lagos Journal of Library and Information Science. University of Lagos Library, Akoka-Yaba, Lagos Nigeria. Alternative Email: nlalagos@outlook.com. Email: bambose26@yahoo.com ...

  13. the Lagos State of Nigeria

    African Journals Online (AJOL)

    were obtained from the records of events in the Register of the Lagos Mainland, Epe and Badagry Local Governments. For the primary source, two hundred question- naires, making 34.48 per cent of the number of elements in the secondary data were distributed to respondents in both rural and urban areas of the state.

  14. Caracterización de la circulación atmosférica y la temperatura superficial del mar asociadas a extremos de caudal de ríos andinos y su variabilidad en baja frecuencia

    OpenAIRE

    Araneo, Diego C.

    2006-01-01

    El objetivo principal del presente trabajo se centra en determinar los mecanismos asociados a la variabilidad de los caudales de los ríos andinos en relación con la circulación atmosférica y la Temperatura Superficial del Mar (TSM) como forzante del sistema climático. Para la circulación atmosférica el estudio se extiende desde la escala sinóptica a la climática. A lo largo de la Cordillera de los Andes se identifican dos zonas en las cuales el comportamiento de los caudales de los ríos muest...

  15. Aproximación psico-antropológica a los mitos andinos

    Directory of Open Access Journals (Sweden)

    1985-01-01

    Full Text Available Ont été sélectionnés pour cet essai les récits de l'origine du Tawantinsuyu (les frères Ayar, de l'expansion de l'Etat (la guerre des Chankas, et d'une interprétation indigène de la Conquête (le Taki Onqoy. Les deux premiers constituent, à notre avis, une sorte de saga inca qui décrit les Incas à travers leur version officielle, le troisième étant l'idéologie messianique d'un mouvement surgi trente ans après la capture d'Atahualpa. Le résultat de cette première recherche résume le travail de nombreuses sessions et prétend ouvrir la discussion sur le problème de la reconstruction des faits et des conduites et sur la méthodologie utilisée. El presente estudio intenta una nueva estrategia para el análisis de los mitos andinos. Se trata de acercarse a ellos a partir de un diálogo interdisciplinario que permita releer los textos como documento histórico y como versión oral, independientemente de la veracidad de los datos que contiene. Se han seleccionado para este ensayo los relatos de origen del Tawantinsuyu (los hermanos Ayar, de la expansión del Estado (la guerra de los Chankas, y de una interpretación indígena de la Conquista (el Taki Onqoy. A nuestro juicio, los dos primeros constituyen una suerte de 'saga inkaica' que describe a los Inkas a través de su versión oficial, siendo el tercero, la ideología mesiánica de un movimiento surgido treinta años después de la captura de Atahualpa. El resultado de esta primera indagación resume el trabajo de muchas sesiones y pretende abrir la discusión tanto en el orden de la reconstrucción de los hechos y conductas, como en la metodología utilizada.

  16. Lago Amazonas: fact or fancy?

    International Nuclear Information System (INIS)

    Tuomisto, H.; Ruokolainen, K.

    1992-01-01

    It has been suggested that a huge lake, Lago Amazonas, covered a large part of the Amazon basin until as recently as two thousand years ago. According to this hypothesis, the topmost sediments in western Amazonia are almost universally young deposit of lacustrine and deltaic origin. The hypothesis has gained some attention among biologists because of its implications for biological phenomena in Amazonia, especially bio geography and bio diversity. According to the available geological data, however, Amazonia is geologically far more complex than assumed by the lake hypothesis. This paper discussed the weaknesses of the Lago Amazonas hypothesis, and indicate alternative explanations of the surface geology that are based on tectonically controlled fluvial deposition. Some aspects of radiocarbon dating method are also presented. (author)

  17. Ectopic Pregnancy: Lagos University Teaching Hospital Experience ...

    African Journals Online (AJOL)

    Ectopic pregnancy remains one of the commonest gynaecological emergencies in developing countries. In a retrospective study of ectopic pregnancy carried out at Lagos University Teaching Hospital (LUTH), Lagos, Nigeria, over a five year period, 272 cases were managed with an incidence of 43.8/1000 deliveries.

  18. Limnological characterization of floodplain lakes in Mamirauá Sustainable Development Reserve, Central Amazon (Amazonas State, Brazil Caracterização limnológica dos lagos da planície de inundação na Reserva de Desenvolvimento Sustentável Mamirauá, Amazônia Central (Estado do Amazonas, Brasil

    Directory of Open Access Journals (Sweden)

    Adriana Gomes Affonso

    2011-03-01

    Full Text Available AIM: This paper examines the spatial and temporal variation of limnological characteristics of floodplain lakes in the Solimões and Japurá confluence, an undisturbed region - the Mamirauá Sustainable Development Reserve (MSDR; METHODS: We analyzed surface temperature, conductivity, pH, dissolved oxygen, turbidity and transparency, and surface water samples were collected for determination of suspended inorganic and organic matter, chlorophyll-a, pheophytin, total nitrogen, total phosphorus, organic and inorganic carbon, in two phases of the hydrograph stage, 2009 high water phase, 2008, 2009 and 2010 low water phases; RESULTS: The results showed that the studied water bodies have high variability in all measured variables: a between hydrograph phases; b among main rivers; and c between opposite margins of Japurá River; CONCLUSIONS: This shows the remarkable influence of the flood pulse and the primary water source on the limnology of this system. The monitoring of physical and chemical limnological variables in Mamirauá will serve as future reference for comparison with disturbed areas, such as the Lower Amazon, and as a baseline for modeling the effects of climate change and anthropogenic influences on Amazon aquatic ecosystem.OBJETIVO: Esse trabalho investiga a variação temporal e espacial de algumas características limnológicas dos lagos da planície de inundação da região de confluência dos Rios Japurá e Solimões, onde está localizada a Reserva de Desenvolvimento Sustentável Mamirauá (RDSM; MÉTODOS: Analisaram-se temperatura, condutividade, pH, oxigênio dissolvido, turbidez e transparência da água em três profundidades (superfície, Secchi e no limite da zona fótica e coletadas amostras de água na superfície para a determinação de material orgânico e inorgânico em suspensão, clorofila-a, feofitina, nitrogênio e fósforo total, carbono orgânico e inorgânico dissolvido, em duas fases da hidrógrafa, água alta

  19. A Influência dos Projetos Municipais Voltados ao Desenvolvimento do Turismo e das Atividades Produtivas Familiares e Comerciais na Comunidade de São João do Lago do Tupé no Município de Manaus, Estado do Amazonas

    OpenAIRE

    Roberto Delfino maia da Silva; Julio César Rodríguez Tello; Lizit Alencar da Costa

    2010-01-01

    The objective of this study was to build the capacity to observe and reflect on the way in which projects are carried out by the administration of the city of Manaus as they pertain to the community of São João Lago do Tupé, in the Tupé Sustainable Development Reserve (REDES), and how they influence positively or negatively family business endeavors, as well as how they influence commerce and tourism. In October of (2005) field work was conducted in the community of São João Lago do Tupé whic...

  20. Determinación de arsénico y mercurio en agua superficial del lago de Atitlán

    Directory of Open Access Journals (Sweden)

    Juan Francisco Pérez Sabino

    2015-11-01

    Full Text Available El lago de Atitlán, considerado uno de los lagos más bellos del mundo, tiene una superficie de 125.7 km2, una profundidad máxima de aproximadamente 350 m, y se encuentra en el departamento de Sololá, en el occidente de Guatemala. Desde 2009 se han observado floraciones extensivas de cianobacterias en el lago, reflejando la contaminación del agua en la cuenca. Se determinaron los niveles de arsénico (As y mercurio (Hg en agua superficial del lago de Atitlán, por espectrofotometría de absorción atómica (EAA, en cuatro muestreos realizados en marzo, mayo, agosto y octubre de 2014 en 14 sitios. Diez sitios se encuentran localizados en el lago, habiendo sido definidos en estudios anteriores con base en su cercanía a poblaciones asentadas en la orillas del lago. Dos sitios corresponden a los principales ríos tributarios, y los restantes dos sitios a la entrada y salida de la planta de tratamiento Los Cebollales, ubicada en Panajachel. Los niveles de As encontrados en el lago de Atitlán, tributarios y en la planta de tratamiento, fueron superiores a 20 μg/L. Los resultados indican que la contaminación del lago de Atitlán por As se debe principalmente a la geología de la cuenca, al localizarse en una zona volcánica. Los niveles cuantificables de As, son superiores al nivel máximo permitido para agua potable en la Norma de Agua Potable (NGO 29001:99 de la Comisión Guatemalteca de Normas (COGUANOR, por lo que el agua del lago de Atitlán no se considera apta para el consumo humano.

  1. Biomedical Science Technologists in Lagos Universities: Meeting ...

    African Journals Online (AJOL)

    Biomedical Science Technologists in Lagos Universities: Meeting Modern Standards in Biomedical Research. ... biomedical techniques. SOTA biomedical science needs adequate financial investment for the scientific resources as well as stable civic infrastructure, thus these public institutions need more of such provisions.

  2. Auditing Autopsies: Lagos University Teaching Hospital Experience ...

    African Journals Online (AJOL)

    antemortem diagnosis) with autopsies (post-mortem diagnosis) on patients managed at Lagos University Teaching Hospital (LUTH) between October 1999 and November, 2000. In the study period, a total of 1843 deaths were registered out of which ...

  3. Acerca de la transferencia lingüística en el castellano andino

    Directory of Open Access Journals (Sweden)

    Jorge Esquivel Villafana

    2011-07-01

    Full Text Available La coexistencia de códigos lingüísticos de comunicación dentro de unamisma área territorial deviene en un tipo de bilingüismo donde el manejode la segunda lengua testimonia las pautas estructurales que imponela lengua materna. Los términos empleados para caracterizar estefenómeno se han sucedido con mucha o poca suerte, con mayor o menoradecuación empírica. El presente artículo se propone presentar unarevisión de ellos, con especial referencia al concepto de transferencia.Palabras claves: Sintaxis, castellano andino.

  4. Insectos de los remanentes de bosques secos andinos del norte de Ecuador

    OpenAIRE

    Troya, A.; Bersosa, F.; Espinoza, L.

    2016-01-01

    Las investigaciones biológicas en los bosques secos de Ecuador se centran en aspectos botánicos y ecológicos, mientras que el conocimiento de la entomofauna es casi nulo. Utilizando trampas Malaise , de caída, y golpeteo, se realizaron muestreos en cuatro localidades de bosque seco Andino con el objetivo de identificar la composición de la fauna de insectos terrestres a nivel de familia. Se registraron 14 órdenes y 117 familias, entre las cuales las hormigas (Formicidae) representaron el may...

  5. Sedimentation survey of Lago Caonillas, Puerto Rico, February 2000

    Science.gov (United States)

    Soler-López, Luis R.

    2001-01-01

    Lago Caonillas, a reservoir owned by the Puerto Rico Electric Power Authority and located in the central part of Puerto Rico, is one of the two reservoirs (the other being Lago Dos Bocas) proposed to supply water for the Puerto Rico Aqueduct and Sewer Authority project called the Superaqueduct. The reservoir was impounded in 1948 and originally provided about 55 .66 million cubic meters of water for hydroelectric power generation. Sediment derived from the reservoir basin has been transported and deposited in the reservoir bottom, substantially decreasing the water storage capacity over time. Successive bathymetric surveys indicated that in 1990 the storage capacity was 49.25 million cubic meters, decreasing to 48.80 million cubic meters in 1995 and to 42.27 million cubic meters in 2000. This represents an overall storage loss of about 11.5 percent by 1990, 12.3 percent by 1995 and 24.1 percent by 2000. The long-term sedimentation rate of the reservoir was about 153,000 cubic meters per year in 1990, remaining almost constant at about 146,000 cubic meters per year in 1995, but nearly doubling to 258,000 cubic meters per year in 2000. The two-fold increase in sedimentation rate, and consequently, the reservoir storage capacity loss, can be attributed to Hurricane Hortense in September 1996 and Hurricane Georges in September 1998. Twenty-four percent of the original storage capacity of Lago Caonillas has been lost to sediment accumulation. About 49 percent of the reservoir sediment was deposited in the last five years, demonstrating the impact of these major storms on the reservoir.

  6. Uterine rupture at Lagos University Teaching Hospital

    OpenAIRE

    Omololu Adegbola; Adesumbo Kanyinsola Odeseye

    2017-01-01

    Background: Uterine rupture remains a major life-threatening obstetric disaster encountered in many developing countries and is associated with a high maternal and perinatal mortality and morbidity. Objectives: The objective of this study was to determine the incidence, associated risk factors, trend, clinical presentation, management as well as maternal and fetal outcome of uterine rupture at the Lagos University Teaching Hospital (LUTH), Lagos, Nigeria. Materials and Methods: This was a ret...

  7. Veinte años del Régimen Andino de Acceso a Recursos Genéticos

    Directory of Open Access Journals (Sweden)

    Mónica Ribadeneira Sarmiento

    2017-05-01

    Full Text Available El artículo buscar contribuir al conocimiento del régimen legal andino de acceso a recursos genéticos, cuyo instrumento central es la Decisión Andina 391, promulgada en 1996. Se analiza la norma y se presentan sus más evidentes virtudes y limitaciones. Se incluye información sobre la evolución nacional de la decisión en cada uno de los países andinos. El artículo contiene un apartado referido al futuro de la norma en el actual escenario de reingeniería del Sistema Andino de Integración (SAI. Se han consultado documentos, fuentes oficiales, artículos de expertos y entrevistas. El artículo se estructura de la siguiente manera: los orígenes de la norma; el análisis y contenido de la norma andina; el proceso de reglamentación en los países andinos; las virtudes y limitaciones; la coyuntura y el futuro, y, por último, las conclusiones.

  8. Lagos Journal of Library and Information Science: About this journal

    African Journals Online (AJOL)

    Lagos Journal of Library and Information Science: About this journal. Journal Home > Lagos Journal of Library and Information Science: About this journal. Log in or Register to get access to full text downloads.

  9. Lagos Journal of Library and Information Science: Site Map

    African Journals Online (AJOL)

    Lagos Journal of Library and Information Science: Site Map. Journal Home > About the Journal > Lagos Journal of Library and Information Science: Site Map. Log in or Register to get access to full text downloads.

  10. Lagos Journal of Library and Information Science: Journal ...

    African Journals Online (AJOL)

    Lagos Journal of Library and Information Science: Journal Sponsorship. Journal Home > About the Journal > Lagos Journal of Library and Information Science: Journal Sponsorship. Log in or Register to get access to full text downloads.

  11. Incidence of Congenital Malaria at Delivery in Lagos. | Oluwole ...

    African Journals Online (AJOL)

    To determine the incidence of congenital malaria at delivery in Lagos, Nigeria. Thick smears were prepared from maternal, umbilical cord, placental blood and neonatal blood of five hundred consenting consecutive women at the time of delivery at the Lagos University Teaching Hospital (LUTH) and Lagos Island Maternity ...

  12. The Pattern Of Neurological Admissions At The Lagos University ...

    African Journals Online (AJOL)

    Objective: To determine the profile of neurological admissions at the Lagos University Teaching Hospital Methods: Neurological admission at the Lagos University Teaching Hospital, Lagos, Nigeria between 1995 and 1999 were reviewed using medical records. Result: Neurological admissions accounted for 19.635 of total ...

  13. Propuesta de administración y manejo de los recursos naturales del lago de Camécuaro

    OpenAIRE

    Meza Ortiz, Octavio Herminio

    2013-01-01

    El lago de Camécuaro se localiza en el municipio de Tangancícuaro, Michoacán. Está conformado por dos tipos de ecosistemas: uno terrestre (bosque de galería) y otro acuático (lago de aguas cristalinas). Su conjunción proporcionan una belleza natural del paisaje que es importante conservar, ya que históricamente el lago es un sitio tradicional de recreo para las población de la región y pese a su limitada extensión (12.14 ha), recibe una gran afluencia turística (250,000 visitantes/año). Fue d...

  14. LAGO: The Latin American giant observatory

    Science.gov (United States)

    Sidelnik, Iván; Asorey, Hernán; LAGO Collaboration

    2017-12-01

    The Latin American Giant Observatory (LAGO) is an extended cosmic ray observatory composed of a network of water-Cherenkov detectors (WCD) spanning over different sites located at significantly different altitudes (from sea level up to more than 5000 m a.s.l.) and latitudes across Latin America, covering a wide range of geomagnetic rigidity cut-offs and atmospheric absorption/reaction levels. The LAGO WCD is simple and robust, and incorporates several integrated devices to allow time synchronization, autonomous operation, on board data analysis, as well as remote control and automated data transfer. This detection network is designed to make detailed measurements of the temporal evolution of the radiation flux coming from outer space at ground level. LAGO is mainly oriented to perform basic research in three areas: high energy phenomena, space weather and atmospheric radiation at ground level. It is an observatory designed, built and operated by the LAGO Collaboration, a non-centralized collaborative union of more than 30 institutions from ten countries. In this paper we describe the scientific and academic goals of the LAGO project - illustrating its present status with some recent results - and outline its future perspectives.

  15. A Influência dos Projetos Municipais Voltados ao Desenvolvimento do Turismo e das Atividades Produtivas Familiares e Comerciais na Comunidade de São João do Lago do Tupé no Município de Manaus, Estado do Amazonas

    Directory of Open Access Journals (Sweden)

    Roberto Delfino maia da Silva

    2010-01-01

    Full Text Available The objective of this study was to build the capacity to observe and reflect on the way in which projects are carried out by the administration of the city of Manaus as they pertain to the community of São João Lago do Tupé, in the Tupé Sustainable Development Reserve (REDES, and how they influence positively or negatively family business endeavors, as well as how they influence commerce and tourism. In October of (2005 field work was conducted in the community of São João Lago do Tupé which included a survey soliciting responses of local residents on socio-demographic, economic, and tourism aspects. 43,33% of interviewed described trash and pollution consequences of tourism.

  16. Urban-Rural Temperature Differences in Lagos

    Directory of Open Access Journals (Sweden)

    Vincent N. Ojeh

    2016-05-01

    Full Text Available In this study, the hourly air temperature differences between City hall (urban and Okoafo (rural in Lagos, Nigeria, were calculated using one year of meteorological observations, from June 2014 to May 2015. The two sites considered for this work were carefully selected to represent their climate zones. The city core, City hall, is within the Local Climate Zone (LCZ 2 (Compact midrise while the rural location, Okoafo, falls within LCZ B (Scattered Trees in the south-western part on the outskirt of the city. This study is one of very few to investigate urban temperature conditions in Lagos, the largest city in Africa and one of the most rapidly urbanizing megacities in the world; findings show that maximum nocturnal UHI magnitudes in Lagos can exceed 7 °C during the dry season, and during the rainy season, wet soils in the rural environment supersede regional wind speed as the dominant control over UHI magnitude.

  17. Reflexões interdisciplinares a partir de A Arte do Canto, manuscrito inédito do barítono gaúcho Andino Abreu

    Directory of Open Access Journals (Sweden)

    Isabel Porto Nogueira

    2011-05-01

    Full Text Available Este artigo apresenta uma análise do manuscrito inédito do barítono gaúcho Andino Abreu (1884-1961, cantor de grande experiência nacional e internacional, elaborado por volta de 1940, quando este já se encontrava ausente dos palcos. O cantor apresenta uma série de reflexões sobre a prática, a interpretação e a aprendizagem do canto, a partir de abordagens interdisciplinares, em que se combinam aspectos da filosofia, da psicanálise e de estudos da linguagem. A base filosófica aristotélico-tomista se congrega com a visão fisiológica, valorizando a respiração e a articulação, ao lado da necessidade de uma formação plural e humanística no ensino do canto.

  18. Near-shore distribution of phyllosomas of the two only lobster species (Decapoda: Achelata present in Robinson Crusoe Island and endemic to the Juan Fernández archipelago Distribución costera de filosomas de las dos únicas especies de langostas (Decapoda: Achelata presentes en la Isla Robinson Crusoe y endémicas del archipiélago de Juan Fernández

    Directory of Open Access Journals (Sweden)

    ÁLVARO T PALMA

    2011-09-01

    species, can be related to a nearshore larval retention mechanism. These preliminary results represent a pioneering effort to understand the mechanisms driving the endemism and extreme isolation of the two study species.En el archipiélago de Juan Fernández en el Pacífico sur oriental coexisten dos especies de langostas, Jasus frontalis (Milne-Edwards, 1837 y Acantharctus delfini (Bouvier, 1909. Igual que la mayoría de las especies de langostas estas atraviesan por un prolongado período larval, el cual es particularmente largo para J. frontalis (> 16 meses. Aunque típico de los Palinúridos, esta prolongada duración larval por lo general no debiese conducir a un reclutamiento local. Si bien es sabido que el asentamiento se encuentra confinado a las tres islas que componen el archipiélago (Robinson Crusoe, Alejandro Selkirk y Santa Clara e Islas Desventuradas (aprox. 600 km al norte, el conocimiento acerca de cómo el abastecimiento local, a través del asentamiento y reclutamiento permite tal patrón de distribución, es escaso. El objetivo de este estudio es doble. En primer lugar, caracterizar la distribución y abundancia de las larvas de estas dos especies alrededor de la isla Robinson Crusoe mediante muestreos de plancton y registros hidrográficos entre octubre de 2008 y marzo de 2011, generando de este modo la primera observación sistemática y prolongada en el archipiélago del acople biofísico cercano a la costa. Hipotetizamos que los patrones de distribución espacial y temporal de las larvas están asociados con su retención alrededor del archipiélago, contribuyendo de este modo con el conocimiento de los procesos físicos y biológicos que mantienen su aislamiento extremo. En segundo lugar, mediante el uso de genética molecular, confirmamos un criterio taxonómico simple para distinguir las larvas de ambas especies, contribuyendo así con futuros estudios sobre dinámica de larvas. En general las filosomas de A. delfini fueron más abundantes que

  19. Diez años de monitoreo limnológico de un lago natural modificado en los trópicos: el lago Cote, Costa Rica

    Directory of Open Access Journals (Sweden)

    Gerardo Umaña

    2014-08-01

    Full Text Available Esta localizado a 650m sobre el nivel del mar en el límite entre las llanuras del Norte y la vertiente del Pacífico en la Cordillera de Guanacaste, Costa Rica. Al inicio de la década de 1980 se construyó una represa en el río de desagüe y el caudal de salida fue desviado hacia el Embalse Arenal. Se realizó un primer estudio entre 1990 y 1991, y luego en el año 2001 antes de que se construyera una nueva modificación del lago mediante el levantamiento del nivel de la presa en un metro con el fin de utilizar la descarga para la producción de energía hidroeléctrica. Del 2002 al 2010 se realizó un monitoreo limnológico dos veces al año. Aquí se presenta un análisis de las principales características y de los cambios a través del tiempo. El lago es polimíctico discontinuo y desarrolla una termoclina intermitente a 6m de profundidad, la cual puede perdurar por varios días o semanas a juzgar por el desarrollo de una capa anóxica cercana al fondo. Desde su modificación la temperatura superficial del lago ha alcanzado valores mayores a los reportados con anterioridad. El hipolimnion muestra periodos de hipoxia a anoxia que se han vuelto más frecuentes. A pesar de la turbidez del lago, la concentración de nutrientes y de clorofila a son bajos. La tendencia en tiempos recientes es a una reducción de la clorofila a y un aumento en la trasparencia del agua. Estos cambios son similares a los observados en lagos donde se ha logrado atribuirlos al cambio climático global. También se pueden deber a la modificación del flujo del efluente por la operación intermitente de la planta hidroeléctrica, que favorece la acumulación de calor en la columna de agua. Esto debido a que otros factores, como el cambio en el uso del suelo en los alrededores del lago ocurrieron en la década de 1980, por lo que no se les puede atribuir una influencia en los cambios observados en los últimos 10 años.

  20. COMUNEROS ANDINOS EN LA ADMINISTRACIÓN CHILENA (ARICA, 1880-1929

    Directory of Open Access Journals (Sweden)

    ALBERTO DÍAZ ARAYA

    2011-05-01

    Full Text Available Resumen Se evalúa el impacto generado en los sectores rurales andinos de Arica por la implementación de la estructura y burocracia administrativa chilena post Guerra del Pacífico. A través de registros documentales se hace explícita la participación de comuneros indígenas en la trama estatal chilena en un período de conflicto político y de identidades nacionales. Palabras claves: Comunidad andina – administración chilena – Arica y Tacna. Abstract Assesses the impact generated in the rural Andes Arica for implementing the administrative structure and bureaucracy in Chile after the Pacific War. Through documentary record makes explicit the participation of indigenous community members in the plot Chilean state over a period of political and national identities. Keywords : Andean Community - Chilean government - Arica and Tacna.

  1. Lo andino en los murales de Jesús Flores Walpaq

    Directory of Open Access Journals (Sweden)

    Mario Leandro Arce De Piero

    2018-04-01

    Full Text Available En este trabajo exploramos los modos en que lo andino se construye en la producción muralística del artista plástico Jesús Flores Walpq. Nos enfocamos en la definición de rasgos que configuran el centro representacional de lo andino y el proceso de deslizamientos semánticos y retóricos en la enunciación. A medida que el artista fue construyéndose como enunciador autorizado, la construcción del relato en el mural fue variando considerablemente. Si bien no se registran diferencias radicales en el empleo del color, la forma, la línea, etc. sí es significativa la variación en cuanto a la retórica que incorpora al indio en el discurso pictórico. El recorrido parte de la observación de los cambios en la construcción del yo-artista, que parte de la problematización del rol de productor de arte académico hasta plantear rol de “obrero del arte” comprometido con su contexto político, ideológico y artístico. Esto significó para Flores Walpaq adherir a las luchas reivindicatorias por los derechos indígenas. En conjunto, este texto nos lleva a problematizar sobre las condiciones de producción de la pregunta por la identidad en este contexto y las respuestas que los sujetos ensayan y modifican.

  2. Transnacionalismo andino

    DEFF Research Database (Denmark)

    Pærregaard, Karsten

    2008-01-01

    Formålet med kapitlet er at analyse den transnationale relation mellem to migrantkollektiver i USA og deres oprindelseslandsbyer i Perus højland. Analytisk koncentrerer kapitlet sig om, hvad som motiverer migranterne til at investere tid og penge i deres hjemlandsbyer, og hvordan dette engagement...

  3. Automated acquisition: principles and practice | Ezomo | Lagos ...

    African Journals Online (AJOL)

    No Abstract. Lagos Journal of Library and Information Science Vol. 1(2) 2003: 120-124. Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT. Article Metrics. Metrics Loading ... Metrics powered by PLOS ALM · http://dx.doi.org/10.4314/ljlis.v1i2.35486 · AJOL African Journals ...

  4. Lagos Journal of Library and Information Science

    African Journals Online (AJOL)

    Lagos Journal of Library and Information Science (LJLIS) aims to publish articles, short communications and conference reports which will: raise the level of awareness within the international library and information community of the potential for change and innovation; assist policy and decision-making in the medium term ...

  5. Cholos, incas y fusionistas: El nuevo Perú y la globalización de lo andino

    Directory of Open Access Journals (Sweden)

    Annelou Ypeij

    2013-04-01

    Full Text Available Abstract:   Cholos, incas and fusionistas: The New Peru and the Globalization of 'Lo Andino'This Exploration deals with the cultural changes in Peru from the year 2000. Peru has become a society with more economic, political, social and global opportunities. Within this context, significant cultural changes can be noted. This essay explores cultural expressions such as the weaving associations of the women of Chinchero, the Peruvian cuisine and the rock band Uchpa. All have in common that they reinterpret 'lo andino', or what it is to be Andean, and that they integrate globalized elements. Based on this, a new identity becomes apparent which surpasses the known categories of ethnicity and class.Resumen:Esta exploración trata sobre los cambios culturales en Perú a partir del año 2000. Perú se ha convertido en una sociedad con más oportunidades económicas, políticas, sociales y globales. En este contexto se pueden notar cambios culturales significantes. El ensayo explora expresiones culturales como las asociaciones de tejidos de las mujeres de Chinchero, la gastronomía peruana y la banda de rock Uchpa. Todas tienen en común que reinterpretan lo andino y que integran elementos globalizados. Basándose en ello, surge una nueva identidad que sobrepasa las conocidas categorías de etnicidad y de clase.

  6. DIVERSIDAD DE MURCIÉLAGOS EN CUATRO LOCALIDADES DE LA ZONA COSTANERA DEL DEPARTAMENTO DE CÓRDOBA-COLOMBIA

    Directory of Open Access Journals (Sweden)

    Jesús Ballesteros C

    2007-12-01

    Full Text Available Objetivo. Contribuir al conocimiento de la diversidad de especies de murciélagos en cuatro localidades de la subregión costanera del departamento de Córdoba. Materiales y métodos. Durante los meses noviembre y diciembre del 2005, se realizó la exploración de la comunidad de murciélagos en cuatro localidades de la zona costanera del departamento de Córdoba. Mediante la metodología de evaluación ecológica rápida (EER, se eligieron áreas con fragmentos boscosos representativos de la zona costanera, con formación vegetal característica de bosque seco tropical. Se realizaron capturas de murciélagos, utilizando redes de niebla durante dos noches seguidas en cada sitio seleccionado, con un esfuerzo de muestreo de 40 horas/red. Resultados. Se registraron 15 especies de murciélagos distribuidos en 10 géneros y 3 familias. La especie más abundante fue Artibeus jamaicensis con el 36,6% de las capturas, seguida de Sturnira lilium y Glossophaga soricina 13,8 y 10,9%, respectivamente. Se registró la presencia de la especie Desmodus rotundus (murciélago vampiro, vector del virus de la rabia bovina. Conclusiones. Los datos indicaron que aún con el alto grado de intervención humana existente en la subregión costanera, y que pese a la homogenización de la matriz del paisaje por los efectos de la ganadería extensiva, los fragmentos de bosques estudiados presentan una importante riqueza de murciélagos, que son considerados tolerantes a habitats con disturbios y de áreas abiertas, especialmente de la familia Phyllostomidae que fue la mejor representada con 12 especies.

  7. SITUACIÓN ACTUAL DEL ENTORNO DEL LAGO ARENAL

    OpenAIRE

    Araya García, Anabelle

    2013-01-01

    Los lagos y las lagunas son ecosistemas que pueden ser naturales o artificiales. El lago Arenal es un ejemplo de un ecosistema artificial que tiene múltiples y variados usos. Los lagos son susceptibles de sufrir modificaciones tanto por procesos naturales como por los inducidos por el hombre o antrópicos. En este estudio se procedió a evaluar el estado ambiental del lago Arenal y a señalar, clasificar y describir los principales problemas encontrados en el sitio. Se ofrecen además algunas con...

  8. Assessment of environmental quality through analysis of frequency of the black spot disease in an assemblage of fish, Guaíba lake, RS, Brazil Avaliação da qualidade ambiental através da análise da frequência da doença dos pontos pretos em assembléias de peixes, Lago Guaíba, RS, Brasil

    Directory of Open Access Journals (Sweden)

    F. Flores-Lopes

    2011-11-01

    Full Text Available The frequency of the black spot disease caused by digenetic trematodes in fish was tested as an indicator of the quality of water in the watershed of Lake Guaíba. Samples were standardised and quarterly made using a seine net at eleven sites in the basin. A total of 53,408 individuals of 66 specimens pertaining to 22 families and 8 orders were collected and analysed. The highest frequency of the disease was found in Astyanax fasciatus. The simple Chi-Squared test applied to the species showed statistically significant frequency of occurrence for three sampled sites. Two of these sites showed the highest frequencies for two consecutive sampling periods of one year and the best levels of water quality. Results of this study suggest that the association between high frequency of infestation by a parasite that causes the black spot disease in fish, and environments with less degradation in water quality, recorded from physical, chemicals and microbiological variables, could be used as an indicator of water quality in these environments.A frequência da doença dos pontos pretos, provocada por trematódeos digenéticos em peixes, foi testada como indicador da qualidade da água na bacia hidrográfica do lago Guaíba (RS. As amostragens foram padronizadas e realizadas trimestralmente com redes do tipo picaré em onze pontos desta bacia. Foram coletados e analisados 53.408 exemplares, totalizando 66 espécies pertencentes a 22 famílias e oito ordens. A maior frequência de ocorrência da doença foi verificada em Astyanax fasciatus. Um Qui-Quadrado simples aplicado para essa espécie indicou frequência estatisticamente significativa de ocorrência da doença para três locais amostrados. Dois destes locais apresentaram as maiores frequências durante dois períodos consecutivos de um ano de amostragem e os melhores níveis de qualidade de água. Os resultados deste trabalho sugerem que a associação entre a elevada frequência de infestação pelo

  9. Uterine rupture at Lagos University Teaching Hospital

    Directory of Open Access Journals (Sweden)

    Omololu Adegbola

    2017-01-01

    Full Text Available Background: Uterine rupture remains a major life-threatening obstetric disaster encountered in many developing countries and is associated with a high maternal and perinatal mortality and morbidity. Objectives: The objective of this study was to determine the incidence, associated risk factors, trend, clinical presentation, management as well as maternal and fetal outcome of uterine rupture at the Lagos University Teaching Hospital (LUTH, Lagos, Nigeria. Materials and Methods: This was a retrospective study of patients with uterine rupture at the LUTH, Idi-Araba, Lagos, Nigeria, from June 1, 2005 to May 31, 2013. The case records of patients in this period were retrieved from the medical health records department. The relevant data of sociodemographic characteristics, clinical presentation, management as well as maternal and perinatal outcome were collated using a structured questionnaire. Results: Of the 13,138 deliveries during the study period, there were eighty cases of uterine rupture giving a hospital incidence of 6.1/1000 deliveries. Patients with parities of 1 (28.36% and 2 (38.81% were identified to be at higher risk of uterine rupture. Previous caesarean section (46.28%, obstructed labor (26.87%, and injudicious use of oxytocin (16.42% were the common associated factors. Rupture along previous anterior scar was the most common site affected in 32.84%; repair with bilateral tubal ligation was the surgical procedure in most of the cases (47.76%. The case fatality rate for ruptured uterus was 11.94% for the mothers and the perinatal mortality rate of 791/1000 babies. Conclusion: Uterine rupture is a major cause of maternal and perinatal death in Lagos, Nigeria.

  10. Automated acquisition: principles and practice | Ezomo | Lagos ...

    African Journals Online (AJOL)

    No Abstract. Lagos Journal of Library and Information Science Vol. 1(2) 2003: 120-124. Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT · http://dx.doi.org/10.4314/ljlis.v1i2.35486 · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  11. Estados sin nación. El discurso nacionalista y el evolucionismo andino, 1890-1930

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    Paul Juan Montoya Vásquez

    2008-06-01

    Full Text Available The objective of this essay is to analyze the relationship between the nationalist pronouncements in Ecuador, Peru and Bolivia, and the debate center on European evolutionism at the end of the 19th and 20th centuries. The essay, introductory in nature, presents some aspects of the recent debate on the genealogic discourse of nationalism as well as some important bibliographic references concerning these issues.//El artículo propone un análisis de las relaciones entre el discurso nacionalista en los países centro andinos (Ecuador, Perú, Bolivia y el debate en torno a las tesis del evolucionismo europeo, a fines del siglo XIX e inicios del XX, centrado en el problema de la “integración de las mayorías” a la vida o dinámica nacional. Por ser de carácter introductorio se avoca a presentar algunos elementos del debate reciente sobre el discurso genealógico del nacionalismo así como parte importante de la bibliografía dedicada al tema en los referidos medios.

  12. Niveles de satisfacción de los usuarios del Hospital Andino Alternativo de Chimborazo

    Directory of Open Access Journals (Sweden)

    Basantes-Avalos, René

    2016-06-01

    Full Text Available To be competitive in the present world, it should be offered goods and services of quality, therefore the efforts of enterprises should be focused on the customer, by knowing their needs, providing value-added solutions and a level of excellence that satisfies them, and thus ensure their loyalty. Alternative Andino Hospital of Chimborazo, Ecuador, which is a new institution in the area of health, performs procedures for continuous improvement when providing their service, but it does not know for sure what the opinions of its customers about the quality of the received service are. That is why, a research that analyzes the perceptions of customers, using the SERVPERF model was made, this model owes its name to the exclusive attention paid to performance assessment to measure the quality of service, although it consists of the same items and dimensions as SERVQUAL, the only difference is that it eliminates the part that refers to expectations of customers. Once analyzed the items of security, empathy, tangibility, reliability and responsiveness; the best one is safety, followed closely by reliability.

  13. Estudio de la Maca (Lepidium meyenii Walp., cultivo andino con propiedades terapéuticas

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    Gabriel Sifuentes-Penagos

    2015-01-01

    Full Text Available La maca es un producto originario de los Andes Centrales del Perú, resistente a granizadas, heladas y sequías prolongadas. Se cultiva desde la época incaica en altitudes comprendidas entre los 3800 a 4500 m.s.n.m. Esta planta herbácea, presenta no sólo un alto valor nutricional sino también es valorada por su papel medicinal. Entre los componentes químicos de este cultivo andino que se han relacionado con sus acciones terapéuticas como el aumento de la fertilidad, niveles de energía, acción antioxidante, mejora del deseo sexual y la tasa de crecimiento, destacan: los glucosinolatos, esteroles, ácidos grasos (macaeno y sus respectivas amidas (macamidas, alcaloides (lepidilinas A y B, macaridina y polifenoles. El objetivo de este trabajo fue, recopilar las diferentes investigaciones que se han llevado a cabo sobre las propiedades terapéuticas de la maca y los compuestos responsables de las mismas.

  14. Algumas notas sobre o Brome Mediterrânico do Museu Regional de Lagos

    Directory of Open Access Journals (Sweden)

    Abel VIANA

    2009-10-01

    Full Text Available Reunidos durante varios anos, merce dos esforços de seu Director, que os obteve de ofertas, ou em resultado de pesquisas suas, possui o Museu Regional de Lagos numerosos objectos de certo interesse, cuja divulgaçâo ná será inútil, visto que, além de valerem como elementos de comparacáo, certos ha que constituem pecas pouco vulgares. Demais, todos eles caracterizam a arqueologia do Algarve, em especial a da regiáo do Sacrum Promunturium.

  15. Breastfeeding practices of mothers of young children in Lagos, Nigeria

    African Journals Online (AJOL)

    Objective: To determine the breastfeeding practices (prevalence, initiation and exclusivity) of mothers of young children in Lagos. Methods: This was a communitybased, cross-sectional study carried out in 2010 in two Local Government Areas of Lagos State. Structured, intervieweradministered questionnaires were ...

  16. User education in tertiary institution in Nigeria | Osagie | Lagos ...

    African Journals Online (AJOL)

    A survey of library users from University of Lagos, Lagos State Polytechnic and Adeniran Ogunsanya College of Education was conducted between April and May, 2002 for their assessment of the User Education Programme. There were 300 respondents, 100 from each of three academic institutions. The criticisms ...

  17. The Politics of Urban Policies in Lagos, 1914 - 1960 | Davies ...

    African Journals Online (AJOL)

    Viewed from this perspective then, urban politics deals with the policies of urban government. Some studies on urbanisation in colonial Lagos, in the period under study have discussed urban policies among others, within the context of the advantages or benefits that Lagos derived from them. These studies argue that ...

  18. Perception of teenagers towards physical abuse in Lagos State ...

    African Journals Online (AJOL)

    This is a cross sectional survey research, which provided a quantitative investigation on the perception of teenagers towards physical abuse in Lagos State, Nigeria. Three hundred teenagers from secondary schools in Badagry division of Lagos State were purposively selected for this study. These secondary teenagers are ...

  19. Presentation and Management of Uterine Fibroids at the Lagos ...

    African Journals Online (AJOL)

    To review the clinical presentation and management of uterine fibroids at the Lagos University Teaching Hospital, Idi-Araba, Lagos. women with uterine fibroids that presented at the Gynaecological outpatient clinic were followed up till surgery and data on sociodemographic profile, parity, presenting signs and symptoms, ...

  20. Prevalence And Intensity Of Ectoparasites Of Livestock In Lagos ...

    African Journals Online (AJOL)

    ... intensity of livestock ectoparasites was highest in Mushin and Badagry areas. Health education was carried out as a strategy to control the prevalence of ectoparasites in Lagos areas. There was compliance to the health interventions. Keywords: kEctoparasites, Lagos, Ticks, Lice, prevalence, intensity. The Zoologist Vol.

  1. WIDENING THE TAX NET: LESSONS FROM LAGOS STATE ...

    African Journals Online (AJOL)

    Prof

    Abstract. Pressure is on governments all over the world to increase revenue through taxation in order to provide better services within their jurisdictions. This study attempts to access the Lagos state's revenue performance under the internally generated revenue scheme. Lagos state total revenue data was collected from ...

  2. The Receptivity of Prospective University Candidates in Lagos ...

    African Journals Online (AJOL)

    This study explored the receptivity of prospective university candidates in Lagos State, Nigeria, to distance learning. The study population comprised 1155 secondary school leavers enrolled in the Joint Admissions and Matriculation Board (JAMB) coaching centres in Lagos Mainland. The study was carried out in two ...

  3. Limb deformities: the Lagos, Nigeria experience | Adewole | Sahel ...

    African Journals Online (AJOL)

    Background: Individuals with various forms and degrees of limb deformities are common on the streets of Lagos, Nigeria. State-sponsored screening and surgical correction of the deformities were carried out in Lagos between June 2004 and May 2006. A report on the pattern of limb deformities is presented. Methods: This ...

  4. Glomus tumours of the Hand in Lagos, Nigeria

    African Journals Online (AJOL)

    DELL

    2Morbid Anatomy Department , College of Medicine , University of Lagos , P M B 12003 Surulere,. Lagos, Nigeria ... Though first described by Wood in 1812, it was Masson that accurately described the histopathology .... Glomus tumor- is an uncommon vascular tumour which is said to occur at any age , at any anatomical.

  5. Circulating Adipokine levels in Type 2 Diabetes Mellitus in Lagos ...

    African Journals Online (AJOL)

    Objective: This study was undertaken with the aim of investigating adipokine levels in the Type 2 Diabetes Mellitus. Methods: This is a cross sectional study conducted in Lagos University Teaching Hospital (LUTH), a-700 bed tertiary hospital centre in Lagos, Nigeria. 53 diabetic subjects and 27 non-diabetic controls with ...

  6. Building Collapse In Lagos State: Causes And Recommendations ...

    African Journals Online (AJOL)

    On Tuesday July 18th 2006 at 7.30 pm there was tears, sorrow and blood at Obute meta in Lagos as a four storey building housing thirty six flats and twenty five lock up shop collapsed killing atleast fifty seven people including children and pregnant women. In the recent past, Lagos had witnessed geometrical leap in the ...

  7. Widening the tax net: Lessons from Lagos State, Nigeria | Abiola ...

    African Journals Online (AJOL)

    Pressure is on governments all over the world to increase revenue through taxation in order to provide better services within their jurisdictions. This study attempts to access the Lagos state's revenue performance under the internally generated revenue scheme. Lagos state total revenue data was collected from 2009 to ...

  8. Autopsy findings in sickle cell disease patients in Lagos State ...

    African Journals Online (AJOL)

    Autopsy findings in sickle cell disease patients in Lagos State University Teaching Hospital, Ikeja, Lagos, Nigeria. ... The study showed that the most common cause of sudden death was anemia-related (50%) while 21% were due to acute infections, 18.4 % were due to cardiovascular events and 4.6% were due to ...

  9. Inventory of fisheries and fishes of the Lagos Lagoon, Lagos, Nigeria

    African Journals Online (AJOL)

    The systematic literature of fishes and fisheries in Lagos Lagoon is scattered, hence there is need for a comprehensive documentation of the diverse fish species that ... artisanal fishery, points to environmental degradation and possible changes in water quality with biological consequences for the biota in this environment.

  10. GRUPOS FUNCIONALES DE PLANTAS EN BORDES DE AVANCE CON POTENCIAL PARA LA RESTAURACIÓN DE UN BOSQUE ALTO ANDINO

    OpenAIRE

    Bonilla Maria Argenis; Castellanos Castro Carolina

    2011-01-01

    El estudio de grupos funcionales de plantas es una herramienta útil en la identificación de características ecológicas de importancia en la regeneración de una comunidad. El objetivo de este estudio fue la identificación de grupos funcionales de plantas en bordes de avance de un bosque alto andino y la evaluación de su importancia en el curso de la sucesión secundaria en pastizales abandonados. Con base en levantamientos de vegetación de 10 x 10m y en la revisión de atributos vitales de las e...

  11. Modelo gerencial para toma de decisiones aplicando Teoría de restricciones en Cemento Andino S.A. - Venezuela

    OpenAIRE

    2012-01-01

    El objetivo de este artículo es determinar mediante la Teoría de restricciones, las mejores opciones de producción y despacho de productos, con las cuales los gerentes pueden tomar las mejores decisiones orientadas a maximizar las utilidades de la empresa Cementos Andino S.A - Venezuela, en la cual se desarrolló la metodología del decálogo, de tal forma que los Trúput obtenidos en los casos planteados como opción de mejora, son el reflejo de los conceptos que enmarcan su aplicación. Los resu...

  12. Mineralogical aspects of Morro de Seis Lagos deposit (Amazonas, Brazil).

    Science.gov (United States)

    Takehara, Lucy; Almeida, Marcelo; Silveira, Francisco

    2014-05-01

    The alkaline body Morro dos Seis Lagos, situated in the northwest Amazonian region, is a Nb bearing deposit formed by thick lateritic regolith as circular geological feature about 5 km in diameter. The host rock of this deposit is an intensely weathered siderite carbonatite. The alkaline intrusion body was formed during the late Mesozoic and enriched during the Cenozoic by process of denudation of the surrounding rocks and formation of lateritic cover with thickness in the order of hundreds of meters. In this process, enrichment of Nb, Fe, Ti, Mn, P and rare earth elements (REE) occurred where the lateritic regolith represents the major Nb mineralization, with estimated inferred reserves of 2.9 billion ton@ 2.8 % Nb2O5, one of the largest deposits of Nb in the world. The mineralogical composition of the lateritic regolith has the predominance of the goethite and hematite, followed by oxy - hydroxides of Mn, Ti - Nb oxides, pyrochlore, cerianite and phosphates. The lateritic regolith samples showed high contents of Fe2O3 40 %, and is followed by elevated Th concentration, which locally has concentration higher than (18%). Another REE mineral is the cerianite. The main manganese minerals are hollandite, romanechite (BaMn9O16[OH4] - mixtures of manganese oxides) and amorphous Mn oxy - hydroxides. The higher concentration of MnO2 (about 40 %) is restricted to manganesiferous range, where manganese minerals occur as layers and filling voids, indicating strong remobilization by later process.

  13. MODELADO MATEMÁTICO DEL COMPORTAMIENTO MECÁNICO DE UN FRAGMENTO DE CARTÍLAGO ARTICULAR

    Directory of Open Access Journals (Sweden)

    NANCY STELLA LANDÍNEZ

    2009-01-01

    Full Text Available El cartílago articular es un material biológico poroelástico que permite la distribución de las cargas mecánicas y el movimiento de las articulaciones. Como material bifásico, en presencia de carga, el cartílago articular deforma su matriz sólida y modifica la presión hidrostática del fluido en su interior. El objetivo del presente trabajo es implementar numéricamente un modelo matemático que predice el comportamiento mecánico del cartílago articular teniendo en cuenta la dualidad entre la matriz sólida y el líquido articular, y la característica de poroelasticidad. Utilizando una metodología basada en el método de los elementos finitos, se simuló el comportamiento de un fragmento de cartílago articular en una y dos dimensiones, ante cargas mecánicas de tensión, compresión y oscilación. El análisis de los resultados permite validar cualitativamente el comportamiento poroelástico del modelo debido a la deformación de la matriz sólida y a la salida de fluido que modifica la presión del mismo de manera similar a lo reportado en trabajos experimentales. Se concluye que el modelo matemático permite realizar predicciones sobre el comportamiento biomecánico del cartílago articular, contribuyendo al proceso investigativo en áreas como la biomecánica y la ingeniería de tejidos.

  14. ¿ES EL COMPORTAMIENTO RELIGIOSO ANDINO PRODUCTO DE FACTORES ECONÓMICOS?

    Directory of Open Access Journals (Sweden)

    Jazmín Tavera Colonna

    2015-04-01

    Full Text Available Sudamérica atravesada por los Andes presenta un contexto rico en diversidad pero incierto. Los fuertes cambios climáticos y terremotos han determinado cambios drásticos en la cosmogonía andina, así las primeras culturas andinas desarrolladas a orillas del mar le dan la espalda y reorientan sus dioses a los nevados de la cordillera. La escritura por su poder de comunicación en el tiempo ha revestido un cierto poder mágico para diferentes culturas. Las gracias impresas son agradecimientos a Dios o a los Santos por los favores concedidos. Al evaluar para Perú, el impacto de variables macroeconómicas sobre la cantidad de gracias por motivos económicos en sectores de clase media, encontramos que sólo los factores que reflejan el animismo andino guardan un impacto significativo. Ello sería el reflejo de un marco institucional débil en el que un individuo encuentra en la religión una institucionalidad legítima que le ofrece respuestas a necesidades básicas para su supervivencia como tal. El sincretismo religioso logró establecer el catolicismo en la Sudamérica andina, pero con una interesante reinterpretación, en la que la naturaleza y los ancestros siguen ocupando un lugar preponderante, sus señales son más claras que la de las instituciones que norman su sociedad.

  15. Murciélagos: nuestros vecinos

    OpenAIRE

    Lutz, María Ayelén; Merino, Mariano Lisandro

    2011-01-01

    Los murciélagos son los únicos mamíferos voladores y hay una gran diversidad de especies. Son esenciales para la ecología: los frugívoros, por ejemplo, colaboran en la regeneración de los bosques y los insectívoros controlan las poblaciones de insectos plagas. Se adaptan a diferentes hábitats y algunos incluso viven en ciudades. Tadarida brasiliensis es una especie insectívora que suele utilizar construcciones humanas como refugio. ¿Cómo protegerlo y a la vez evitar problemas de con...

  16. COMPORTAMIENTO DE LA ACTIVIDAD ENZIMÁTICA DEL SUELO AL APLICAR MUCÍLAGO DE NOPAL (Opuntia spp.

    Directory of Open Access Journals (Sweden)

    Julio Cesar Muñoz Bojorges

    2015-04-01

    Full Text Available El mucílago de nopal contiene polisacáridos que pueden influir en la actividad enzimática del suelo. Se emplearon dos suelos, arenoso (63% y arcilloso (67%, donde se probaron tres dosis de mucílago de nopal; T80 20, T40-60, T10-90 (porcentaje de mucílago-agua, más el testigo solo con agua. Los tratamientos se colocaron en una cámara de ambiente controlado a 25 ºC y humedad de 40%. Se tomaron muestras a los 7, 14 y 21 días, después de aplicado el mucílago. Se valoró la actividad de las enzimas: amilasa, celulasa, lipasa e invertasa, que participan en el ciclo del carbono para saber como afecta el mucílago de nopal en ellas. A los 21 días en el suelo arcilloso, con el tratamiento T80-20 hubo mayor actividad de: amilasa (91 mg de azúcares reductores 10 g 1 de materia seca 24 h-1, lipasa (133.33 nM de 4 metil umbeliferona g 1 de materia seca 24 h-1 e invertasa (5.53 mg de glucosa 10 g-1 de materia seca 24 h-1, y la celulasa en el T40-60 presentó la mayor actividad (72.66 µg de glucosa g-1 de materia seca 24 h 1. En el suelo arenoso a los 21 días, el T80-20 fue el que presentó mayor actividad lipasa (60.66 nM de 4 metil umbeliferona g-1 de materia seca 24 h-1, el T40 60: invertasa (1.86 mg de glucosa 10 g-1 de materia seca 24 h-1 y celulasa (33.66 µg de glucosa g 1de materia seca 24 h-1, y el T10-90 amilasa (43.66 mg de azúcares reductores 10 g-1 de materia seca 24 h-1. El mucílago de nopal incrementó la actividad enzimática (amilasa, celulasa, lipasa e invertasa en los dos tipos de suelo.

  17. Bioética y justicia ambiental en la salud de los pobladores andinos de Perú

    Science.gov (United States)

    Alcantara Zapata, Diana E.; Mazzei Pimental, Marinella

    2018-01-01

    Este artículo intenta plasmar el panorama bioético-ambiental de la salud del poblador que habita en la sierra peruana, remarcando la inequidad en el acceso a los servicios de salud que existe en esta región y reflexionando sobre las posibles causas contextuales, históricas y actuales que han originado diferencias entre el poblador andino del incanato y el poblador andino actual, el cambio de cosmovisón sobre el ambiente y los recursos, el deterioro del enfoque de justicia, solidaridad, bienestar y respeto hacia el ser humano y la naturaleza. Además, se describe la salud desde el escenario histórico de esta región, donde la salud pública tiene y tendrá como desafío la aplicación de programas que respondan a las necesidades específicas de esta población, con un enfoque dirigido hacia lo ambiental. PMID:29708219

  18. Conceptualising megacities and megaslums in Lagos, Nigeria

    Directory of Open Access Journals (Sweden)

    Olayinka Akanle

    2017-09-01

    Full Text Available Burgeoning megacities is one of the fascinating realities of the 21st century global development. A huge chunk of individuals across the cosmos continue to crave for expansion of megacity space. Thus, living in a megacity is nothing short of psychosocial nirvana of many in the 21st century. With the growing appetite for increase in the number of megacities emanates issues of conterminous slumhood, gentrification, poverty, increasing crime rate and general hazards for lives and property. It is pertinent not to view megacity as an isolated phenomenon without considering its indelible flipside – megaslum. This article is devoted to intense analysis of pros and cons of the emergence of megacities using secondary data that were analysed in a triangulated manner. Pictorial data further complemented both theoretical and statistical information related in the work. Thus, using Lagos as an example, this article engaged the use of sociological imagination to x-ray how survival of megacities depends on a number of factors without which megacity becomes unsustainable. It is from this standpoint that the authors made useful recommendations to stakeholders in order to make Lagos megacity, and the likes, sustainable.

  19. Evaluation of groundwater resource of Amuwo-Odofin, Lagos State ...

    African Journals Online (AJOL)

    Odofin, Lagos State, Nigeria was carried out. The Direct Current Electrical Resistivity method of geophysical prospecting using the Schlumberger electrode configuration was adopted. The curve types obtained from the field data were 6 – layer ...

  20. Analysis of Fallopian Tubes seen in the Lagos State University ...

    African Journals Online (AJOL)

    , Ikeja, Lagos, Nigeria:- An Histopathological Survey. ... CONCLUSION: Tubal pregnancy is the commonest indication for sending fallopian tubes to the laboratories for analysis in 63.9% of cases. Malignant tumours of the fallopian tubes and ...

  1. Community structures of soil animals and survival of land snails on an island of the Ogasawara Archipelago Estruturas de comunidades de animais de solo e sobrevivência dos caracóis terrestres numa ilha do Arquipélago Ogasawara

    Directory of Open Access Journals (Sweden)

    Motohiro Hasegawa

    2009-08-01

    Full Text Available On Chichijima, one of the Ogasawara (Bonin Islands located in the Western Pacific Ocean, land snails have declined, the suggested cause being predation pressure by an invasive flatworm (Platydemus manokwari. Soil fauna were investigated in areas where the snail survives, and where it has become extinct. Much of the fauna, dominated by introduced earthworms and ants, was undiminished, however, one undescribed but endemic carabid (Badister sp., which selectively feeds on land snails, was absent in snail-extinct areas. The invasive flatworm P. manokwari has been reported to feed also on the carcasses of earthworms, as well as on live snails, and is therefore expected to occur in most parts of Chichijima Island. Among other groups, the density of isopods (also dominated by exotic species was very low, in comparison with the reported ones 30 years ago. Community structure is currently reflected by dominance of earthworms and ants, decline of endemic isopods, and a high frequency of introduced or alien species.Em Chichijima, uma das ilhas do Arquipélago Ogasawara (Bonin, localizado no Oceano Pacífico Ocidental, o número de caracóis terrestres diminuiu, e a causa provável é a predação por uma planária invasora (Platydemus manokwari. A fauna edáfica foi avaliada nas áreas onde o caracol sobreviveu e onde se extinguiu. Grande parte da fauna, dominada inicialmente por minhocas e formigas, não diminuiu; contudo, um carabídeo endêmico e não descrito (Badister sp., que se alimenta de caracóis terrestres, não estava presente nas áreas em que o caracol foi extinto. Sabe-se que a planária invasiva P. manokwari se alimenta não só das carcaças das minhocas, mas também de caracóis vivos, e por isso habita a maior parte da Ilha Chichijima. Entre outros grupos, a densidade de isópodos (também dominados por espécies exóticas foi muita baixa, em comparação aos relatos feitos 30 anos antes. A estrutura da comunidade é refletida atualmente

  2. HISTORIA AMBIENTAL DE UN LAGO ALPINO EN EL CENTRO DE MÉXICO (1230-2010

    Directory of Open Access Journals (Sweden)

    Estela Cuna

    2015-01-01

    Full Text Available Los lagos de alta montaña, con una baja mineralización, alcalinidad y contenido de nutrientes, son ecosistemas sensibles a perturbaciones naturales o antropogénicas y en la actualidad están amenazados por el calentamiento global. En México existen dos lagos de alta montaña (> 3,800 m snm: La Luna y El Sol, en el cráter del Nevado de Toluca. Análisis de parámetros químicos y de diatomeas en sedimentos superficiales permiten identificar que La Luna es más ácido y menos mineralizado que El Sol y que a pesar de su proximidad geográfica cada lago tiene un conjunto de diatomeas característico, con menor abundancia y riqueza específica en La Luna. En este lago dominan Encyonema perpusillum y Psammothidium helveticum y en El Sol Cavinula pseudoscutiformis , Psammothidium levanderi y Aulacoseira distans. Con base en esta distribución se interpreta el registro de diatomeas de una secuencia sedimentaria de La Luna, de 57 cm, fechada con 210 Pb y 14 C en la que también se realizaron análisis de contenido de cladóceros y de susceptibilidad magnética. Todos estos indicadores permiten ubicar el inicio de una tendencia hacia climas secos y fríos alrededor de los años 1350 y 1510, que corresponde a la Pequeña Edad de Hielo (PEH, la cual tiene su máxima expresión entre los años 1660 y 1760, durante el mínimo de actividad solar de Maunder. Las características ambientales de sequía y frío se observan hasta principios del siglo XX. La comparación de este registro con otros disponibles permite concluir que durante la PEH hubo una tendencia regional en el centro de México hacia climas secos.

  3. Revisión de los patrones de distribución de Crocodylus niloticus Laurenti 1768, en Etiopía,y estima de tamaño corporal de grandes ejemplares del lago Chamo

    Directory of Open Access Journals (Sweden)

    Tejado-Lanseros, C.

    2015-01-01

    Chamo, Chew Bahir, Turkana y Murle. La estimación de tamaño corporal de grandes ejemplares procedentes del lago Chamo, en función de muestras craneales, ofrece resultados de tres individuos que superan los 5 metros de longitud total (LCT = 5,11 m, 5,26 m y 5,35 m y dos individuos que se acercan a los 5 metros (LCT = 4,84 m y 4,99 m. Por ello se destaca la población de C. niloticus del lago Chamo como una de las más relevantes del continente africano.

  4. TEMPOROMANDIBULAR PAIN DYSFUNCTION SYNDROME IN PATIENTS ATTENDING LAGOS UNIVERSITY TEACHING HOSPITAL, LAGOS, NIGERIA.

    Science.gov (United States)

    Eweka, O M; Ogundana, O M; Agbelusi, G A

    2016-01-01

    Temporomandibular joint pain dysfunction syndrome (TMJPDS) is the most common temporomandibular disorder. This condition presents with symptoms of pain, restricted jaw movement and joint noise. Other symptoms include otalgia, headache, neck pain and trismus. To determine the pattern of Temporomandibular joint pain dysfunction syndrome patients managed at the Lagos University Teaching Hospital, Lagos, Nigeria. A descriptive study of patients with signs and symptoms of Temporomandibular joint pain dysfunction syndrome attending the Oral Medicine Clinic of Lagos University Teaching Hospital. Twenty-one patients with Temporomandibular joint pain dysfunction syndrome were enrolled into the study, out of which 10(48%) were females and 11(52%) were males. The age range was 23-81years with a mean of 45.2 ± 18.9 years. Majority of the patients 20(95.2%) complained of pain around the joint, in the pre-auricular region, in the muscles of mastication and the ear. While 7(35%) complained of clicking sounds, 10(47.6%) complained of pain on mouth opening and during mastication only. In all 5(23.8%) had impaired movement of the jaws, mouth opening was normal in 18(85.7%) but reduced in 3(14.3%) patients. Over half of patients 12(57%) experienced clicking sounds, there was tenderness around the temporomandibular joint in 16(76.2%) cases, pain in the ear of 7(33.3%) patients and 13(61.9%) people presented with tenderness of the muscles of mastication. Conservative management of all the cases resulted in resolution of the symptoms. Temporomandibular joint pain dysfunction syndrome has diverse clinical presentation and though distressing, it responds to prompt and effective conservative management.

  5. Riqueza de especies, nuevos registros y actualización del listado taxonómico de la comunidad de murciélagos del Parque Nacional Natural Gorgona, Colombia

    Directory of Open Access Journals (Sweden)

    Oscar E Murillo G

    2014-02-01

    Full Text Available Los inventarios biológicos son esenciales para el seguimiento de cambios causados por factores naturales y antrópicos, y para determinar las prioridades de conservación. El estudio de los murciélagos es importante pues estos proveen servicios ambientales esenciales y su diversidad puede reflejar el estado de otros organismos. Sin embargo, el inventario de los murciélagos del PNN Gorgona puede ser incompleto debido a los pocos muestreos intensivos que se han realizado. En este trabajo, se actualiza el listado de la comunidad de murciélagos del Parque Nacional Natural Gorgona, se evalúa su inventario y se propone una clave taxonómica. Considerando que sólo existe una especie del género Saccopteryx (S. leptura en Gorgona, en los estudios previos se han registrado 13 especies de murciélagos, En el presente estudio se adicionan dos nuevos registros: Peropteryx macrotis con base en la revisión de colecciones biológicas y Mimon crenulatum con base en trabajo de campo. Consecuentemente, se han registrado un total de 15 especies de murciélagos en le PNN Gorgona, mientras el estimado de riqueza predice un total de 33 especies. Por lo tanto, el inventario actual corresponde al 45.5% del número de especies esperado. Por otra parte, la detectabilidad de murciélagos insectívoros y nectarívoros fue baja en comparación con la de frugívoros. En conclusión, el inventario de murciélagos no es completo y las especies insectívoras pueden estar sub-representadas debido al uso exclusivo de redes de niebla en los estudios realizados.

  6. Evaluación de la contaminación en el lago Titicaca

    OpenAIRE

    Ministerio de Agricultura; Instituto Nacional de Recursos Naturales. Dirección General de Áreas Naturales Protegidas

    1996-01-01

    Contiene una relación de informes relacionados a la contaminación del lago Titicaca, tales como: Evaluación de la contaminación en el lago Titicaca y Evaluación ambiental del problema de contaminación que afecta al lago Titicaca (ambos de de setiembre de 1996), Informe sobre la grave contaminación ambiental que está afectando el lago Titicaca (marzo de 1996) y el Plan para descontaminar las aguas del lago Titicaca, Bahía Interior de Puno (julio de 1996).

  7. Geophysical study of saline water intrusion in Lagos municipality

    African Journals Online (AJOL)

    aghomotsegin

    Saline water intrusion presently constitutes serious concerns in the Lagos municipality just like many other coastal cities, thus necessitating its intervallic study. The present study involving 52 borehole logs (consisting of natural gamma and electrical resistivity components) was aimed at delineating intruded and vulnerable ...

  8. Bacteriology of sachet water sold in Lagos, Nigeria | Egwari | East ...

    African Journals Online (AJOL)

    Objectives: To investigate the health risks associated with methods of hawking of sachet water in the streets of Lagos. Design: Eight brands of sachet water were collected from four different receptacles; unopen packs from factory, pail and wheelbarrow containing ice-blocks as coolants, and domestic refrigerators. Bacterial ...

  9. Department of Estate Management, University of Lagos, Akoka ...

    African Journals Online (AJOL)

    USER

    2015-02-13

    Feb 13, 2015 ... most critical issues that determined land accessibility among urban crop farmers in the Lagos metropolis were in the following ... Thus, availability and usability were not the most critical issues in urban crop farming. Also, publicly-owned lands .... have lost their paid jobs. The ubiquity of urban farming has ...

  10. Comparative Study of Teenage Pregnancy in Lagos State University ...

    African Journals Online (AJOL)

    This informed a comparative study of the obstetric performance of primiparous teenagers and nonteenage primiparas within a two-year period (1st January, 2006-31st December, 2007) in Lagos State University Teaching Hospital,Ikeja. Fifty six(56) case notes of teenagers who delivered in this hospital were available for ...

  11. Ectopic Pregnancy in Lagos State University Teaching Hospital ...

    African Journals Online (AJOL)

    We set out to determine the socio-demographic factors,pattern of presentation and management of ectopic pregnancy in a University Teaching Hospital in Lagos, Nigeria. A retrospective descriptive analysis of all cases of ectopic pregnancy over a 2-year period was carried out. The case notes were retrieved from the ...

  12. A Visionary of the Lagos Muslim Community: Mustapha Adamu ...

    African Journals Online (AJOL)

    While such biographies cut across religio-cultural boundaries, it seems clear that biographies on Muslim personalities, most especially at the local level, deserve more attention. This is why this study is on Mustapha Adamu Animashaun, who influenced the lives of Muslims and non-Muslims alike in Lagos during the first half ...

  13. Cost of Care Among Patients With Pulmonary Tuberculosis in Lagos ...

    African Journals Online (AJOL)

    Tuberculosis (TB) is a global health challenge. Currently it is the 7th leading cause of death worldwide, and Nigeria ranks fourth amongst 22 high-burden countries for the disease. This study sought to appraise the direct and indirect costs borne by TB patients attending the Chest Clinics at the Lagos State University ...

  14. Evaluation of polybrominated diphenyl ethers in sediment of Lagos ...

    African Journals Online (AJOL)

    These highly hazardous organic pollutants of concern are persistent, can bioaccumulate and biomagnify in aquatic organism especially fish, and there appears to be no clear strategy for managing them. In this study, levels of polybrominated diphenyl ethers were determined in sediments collected from Lagos lagoon with ...

  15. Breastfeeding practices of mothers of young children in Lagos, Nigeria

    African Journals Online (AJOL)

    PROF. EZECHUKWU

    2013-06-23

    Jun 23, 2013 ... ing birth weight, method of delivery, birth order, and the use of pacifiers.13,14. This study therefore, examines breast-feeding practices among mothers in Lagos state Nigeria, specifically breastfeeding prevalence, initiation and exclusivity. The result will be useful to health educators, policy makers and other ...

  16. Attitude and Perceptions of Clinicians in Lagos to Autopsy Practice ...

    African Journals Online (AJOL)

    Using pretested questionnaire instrument, a cross sectional survey of clinicians working in the Lagos University Teaching Hospital to obtain their attitudes and perception towards autopsy practice. 230 questionnaires were administered and the response rate was 80.7% . 41.5% of respondents often requested for autopsy.

  17. Assessment of Social Anxiety among Adolescents in Lagos Metropolis

    African Journals Online (AJOL)

    The main objective of this study was to assess the prevalence of social anxiety among adolescents in Lagos metropolis. The following hypotheses were formulated and tested to achieve the objective: (1) Female participants will have significantly higher scores in measures of SAS than male participants. (2) There will be ...

  18. Urban agriculture in metropolitan Lagos: An inventory of potential ...

    African Journals Online (AJOL)

    However, the benefit of urban farming is hinged on availability of productive land and water resources for this economic group. In Lagos, the land ownership system ... Keywords: Ecological carrying capacity, ecological city (eco-city), ecological footprint, urban agriculture, urban planning. Eastern Africa Journal of Rural ...

  19. The Artists of the Universal Studios of Art, Lagos, Nigeria

    African Journals Online (AJOL)

    Nneka Umera-Okeke

    Art flourished with the contributions of, mostly, schools, workshops and studios spread around the country. The Universal Studios of Art, Lagos happened to be a stakeholder to the growth of art professionalism for more than fifteen years. The studios accommodated sculpture, painting, metal design, graphics and ceramics.

  20. 236 Effective Social Work Practice in Lagos: An Emerging

    African Journals Online (AJOL)

    User

    2010-10-17

    Oct 17, 2010 ... Ayangunna, James A. - Department of Social Work, Faculty of Education,. University of Ibadan, Ibadan, ... health, mental health, care for the aged, informal education, social planning and development. .... Islamic and other faiths who have not always managed to co-exist peacefully. (Collier, 2007). Lagos, as ...

  1. Scintigraphic analysis of thyroid diseases at the Lagos University ...

    African Journals Online (AJOL)

    This paper presents a retrospective analysis of randomly selected clinical scintigraphic records at the College of Medicine/Lagos University Teaching Hospital, Nigeria. Out of the 436 patients scanned for various thyroid abnormalities, 266 (61.0%) were used for the analysis due to insufficient data and parameters required ...

  2. Performance of small and medium enterprises in Lagos state: the ...

    African Journals Online (AJOL)

    The main aim of this study is to examine the impact of finance on the performance of small and medium enterprises in Lagos State. The research design adopted for this study is survey research design. Data analysis and hypotheses test from 250 SME owners and operators using Pearson correlation and regression ...

  3. Childhood mortality in children emergency centre of the Lagos ...

    African Journals Online (AJOL)

    Childhood mortality in children emergency centre of the Lagos University Teaching hospital. ... commonest conditions accounting for 22.6%, 16.3%, 12.1% and 9.9% of deaths respectively. Conclusion: Childhood mortality in LUTH is still high with majority of deaths occurring in infancy especially in the neonatal period.

  4. Lago Agrio (Nueva Loja), Ecuador: A Strategic Black Spot?

    Science.gov (United States)

    2013-03-01

    there will be an additional 18,000 asylum seekers entering the border regions annually.53 25 The Lago Agrio region receives the largest influx...refuge in Ecuador over the past decade. By the end of 2012, there were 55,791 who officially seeked asylum and. 98 percent of these recognized

  5. The Prevalence of Cardiovascular Disease in the Lagos State, Nigeria

    African Journals Online (AJOL)

    The analysis, which examines the prevalence of cardiovascular diseases (ICD 9: 390-459) in Lagos State of Nigeria, was based on records obtained from the register of deaths in four Local Government Areas of the State. The result shows that there is general increase in death rates due to cardiovascular diseases over the ...

  6. Management of Records in Public Secondary Schools of Lagos ...

    African Journals Online (AJOL)

    This article investigated management of records in public secondary schools of Lagos State, Nigeria. Simple random sampling technique with questionnaire, observation and interview methods were usedfor data collection through ten research assistants. 257 school managers (principals) were randomly sampledfrom a ...

  7. 459 Road Transport System Management and Traffic in Lagos ...

    African Journals Online (AJOL)

    User

    2010-10-16

    Oct 16, 2010 ... Road transport is a catalyst of urban, rural and national development. It is a catalyst by facilitating the ... planning and operating a system of urban highway and street network. It arises from the need to ..... Source: Master Plan Project, Urban and Regional Planning Division, Lagos. State Ministry of Economic ...

  8. Personnel Recruitment and Retention Strategies in Lagos State Civil ...

    African Journals Online (AJOL)

    Lagos State Civil Service (LSCS) exists to implement policies of government. To realize this goal, personnel are needed, which are products of personnel recruitment and retention strategies (PR & RSs) of the civil service (CS). This study empirically examined personnel recruitment and retention strategies in LSCS.

  9. Prevalence and trends in breast cancer in Lagos state, Nigeria ...

    African Journals Online (AJOL)

    The study examined the trends in the prevalence of breast cancer in Lagos State, Nigeria. A sample of 1000 subjects was taken from a population consisting of women between the ages of 15 and 60 years spread across the 20 Local Government Areas (LGAs) of the State. Fifty questionnaires were distributed in each LGA.

  10. Polychlorinated biphenyl in fish samples from Lagos Lagoon, Nigeria

    African Journals Online (AJOL)

    STORAGESEVER

    2009-06-17

    Jun 17, 2009 ... Several fish samples from the Lagos lagoon, Nigeria were analyzed for the presence of polychlorinated biphenyls (PCBs). The fish species analyzed include Tilapia zilli (red belly Tilapia), Ethmalosa fimbriata. (Bonga shad) and Chrysichthys nigrodigitatus (catfish). Eight PCB congeners were identified and.

  11. Development Control in Lagos State: an Assessment of Public ...

    African Journals Online (AJOL)

    This submission also contains an assessment of the town planning regulation, level of compliance to building regulation and technical skills of personals monitoring compliance to space standards as specified by Urban and Regional Planning Law Decree 88 of 1992, the Lagos Planning Law of 2005 and under the Urban ...

  12. Road Traffic Accident Variations in Lagos State, Nigeria: A Synopsis ...

    African Journals Online (AJOL)

    The major objective of this research is to examine the variation patterns of road traffic accident in Lagos State. The study used mostly secondary data; accident records and vehicular situation were obtained from the Nigeria police force and Federal Road Safety Commission. The data were obtained for a period of thirty two ...

  13. Gender and Campus Violence: A Study of University of Lagos ...

    African Journals Online (AJOL)

    This research is an attempt to investigate the incidence of violence among university students using University of Lagos as a case study. A questionnaire on different kinds of violence was administered to 446 students of the university. In addition, four focus group discussion sessions were conducted to assess the types of ...

  14. Evaluation of measles vaccine cold chain in Lagos State, Nigeria ...

    African Journals Online (AJOL)

    The National (level 1), State (L2), and Local government vaccine cold stores (L3) as well as some vaccination centres (L4) were physically inspected in Lagos State, Nigeria and the potency of the live-attenuated measles vaccine was tested. Both the L1 and L2 storage facilities were formally adequately equipped and ...

  15. Degradation of Aroclor 1221 by microbial populations of the Lagos ...

    African Journals Online (AJOL)

    SERVER

    2007-10-18

    Oct 18, 2007 ... Samples obtained from three locations in the Lagos lagoon were studied for the effect of Aroclor 1221 on their population dynamics. In all three cases, both control and experimental microcosms showed slight increases between day 5 and day 10 with the highest value of 4 × 1010 cfu/ml in control and 1.2 ×.

  16. Comparative demand analysis for rice in Edo, delta and Lagos ...

    African Journals Online (AJOL)

    The study examined the comparative demand analysis for rice types in Edo, Delta and Lagos states of Nigeria. A multi-stage sampling procedure, involving four stages, was used to select eight hundred and twelve (812) households. Data collected were analysed using both descriptive and inferential statistics. The results of ...

  17. Personnel Recruitment and Retention Strategies in Lagos State Civil ...

    African Journals Online (AJOL)

    Nekky Umera

    The results show that the strategy for personnel recruitment into the CS is based on .... Thompson, Gamble and Strickland (2004), see strategy as a game plan which ..... Education. Lagos State Education Ministry implemented the programme of Unified. Internal Examination for students in the public secondary schools. The.

  18. A Review of Nosocomial Infection at the Lagos university Teaching ...

    African Journals Online (AJOL)

    The infection control program of the Lagos Universityteaching hospital was started in 1974 with an Infection Control team reporting to an Infection Control Committee. There is currently no functioning Infection Control Committee. An analysis of data of a hospital- wide surveillance obtained between November 1993 ...

  19. Islam and Hausa Culture | Adeleke | Lagos Historical Review

    African Journals Online (AJOL)

    Although Islam is not indigenous to Hausaland it has, along with the Hausa language, become the most distinguishing feature of Hausa culture. The article interrogates the historical processes that led to the Islamisation of Hausa culture. Lagos Historical Review, vol. 5 (2005), 99-110 ...

  20. Quality evaluation of yogurts produced commercially In Lagos, Nigeria

    African Journals Online (AJOL)

    Yogurt of the natural-stirred and pineapple-stirred varieties manufactured commercially in Lagos, Nigeria were analyzed to evaluate the nutritional quality of the fresh and stored product. The carbohydrate and protein contents were higher in the pineapple than in natural yogurt with an average percent content of 12.7 and ...

  1. A prospective study of Vitamin A Utilization in Lagos, Nigeria ...

    African Journals Online (AJOL)

    Also, drug utilization studies are primary in establishing mechanisms to promote the use of this vitamin. Hence, we investigated the use of Vitamin A in 4 referral paediatric units in Lagos, Nigeria. The study was prospective with the use of questionnaires administered to those patients placed on Vitamin A therapy among 380 ...

  2. MUSIC EDUCATION AND MUSICAL ACTIVITIES IN LAGOS: THEN ...

    African Journals Online (AJOL)

    different musical genres especially, commercial ones keep emerging. Lagos being the nation's centre of social and economic activities is always the first place of call to harbour such musical activities. However, most of the musical activities of the first periods still exist, though in a modern way. Commercial dance music ...

  3. Paediatric Hand Injuries At The Lagos University Teaching Hospital ...

    African Journals Online (AJOL)

    Background: Paediatric hand trauma represents a subset of hand injury that can be quite challenging to manage. Local studies on this injuries are few therefore a 4 year retrospective study at the Trauma and hand rehabilitation unit of the Lagos University teaching hospital was carried out. Objectives: To determine the ...

  4. Traditional Music and Dance: An Appreciation | Adedeji | Lagos ...

    African Journals Online (AJOL)

    Lagos Notes and Records. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 17 (2011) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register. DOWNLOAD FULL TEXT Open Access DOWNLOAD FULL TEXT ...

  5. Assessment of tree species diversity in the University of Lagos ...

    African Journals Online (AJOL)

    This study was aimed at assessing and providing management options for tree species growing on Akoka Campus of University of Lagos, Southern-Western Nigeria by collecting data from four (4) randomly selected 50m x 50m plots in the study area. The assessment was carried out through extensive field survey with the ...

  6. Prognostic Factors Of Typhoid Perforation in Lagos | Atoyebi ...

    African Journals Online (AJOL)

    Prognostic Factors Of Typhoid Perforation in Lagos. OA Atoyebi, AA Adesanya, CE Atimomo, JT Da Roche- Afodu. Abstract. Perforation of the ileum remains one of the commonest and the most dramatic complication of Typhoid fever in developing countries where the infection is still prevalent. A prospective study of patients ...

  7. Distribution pattern of enteric organisms in the Lagos Lagoon, Nigeria

    African Journals Online (AJOL)

    A wide range of organisms was encountered in the 24 sampled sites of the Lagos Lagoon. The enteric gram-negative shortrods, Lactose fermenting organisms such as Klebsiella spp, Enterobacter spp and Escherichia coli were prevalent in most of the Lagoon sites studied. The in vitro antibiotic sensitivity profile of the ...

  8. STRUCTURAL PATTERN OF MOBILE PHONE USAGE IN LAGOS ...

    African Journals Online (AJOL)

    Osondu

    2012-10-04

    Oct 4, 2012 ... judicious provision of telecommunication facilities. Telecommuting takes place in Lagos metropolis with the relatively recent telecommunication technology GSM used to substitute the home office business, social and recreational trips. This has become a weapon in conserving physical energy as well as to ...

  9. Carcinoma of the Penis: Experience from the Lagos University ...

    African Journals Online (AJOL)

    Background: Carcinoma of penis is rare in countries where neonatal male circumcision is the tradition and in Nigeria it is a common practice amongst almost all the tribes. Objective: This is to document the prevalence, age distribution, site and histologic types of penile carcinoma at the Lagos University Teaching Hospital ...

  10. Antibiotic resistance among heterotrophic bacteria in Lagos Lagoon ...

    African Journals Online (AJOL)

    Antibiotic-resistant bacteria in the aquatic environment are considered reservoirs for drug-resistant genes. Therefore, culturable heterotrophic bacteria isolated from Lagos Lagoon surface waters between 2011 and 2012 were screened for their susceptibility to 14 commonly used antibiotics belonging to six major classes.

  11. Polychlorinated biphenyl in fish samples from Lagos Lagoon, Nigeria

    African Journals Online (AJOL)

    Several fish samples from the Lagos lagoon, Nigeria were analyzed for the presence of polychlorinated biphenyls (PCBs). The fish species analyzed include Tilapia zilli (red belly Tilapia), Ethmalosa fimbriata (Bonga shad) and Chrysichthys nigrodigitatus (catfish). Eight PCB congeners were identified and quantified in ...

  12. Correlates of Abortion Related Maternal Mortality at the Lagos State ...

    African Journals Online (AJOL)

    This study was carried out to highlight the probable correlates of mortality among patients managed for abortion related complications at the Lagos State University Teaching Hospital, Ikeja. All patients managed for abortion related complications between 1st January 2000 and 31st December 2003 were studied. Certain ...

  13. Fish resources of Lagos State coastal wetlands | Ayodele | African ...

    African Journals Online (AJOL)

    Fishing is the major occupation of the people found along the coastal wetland of Lagos State. Fishing is carried out all the year round. This study examines the fishing Activities, Gear composition and fishing methods in order to obtain the fish species and harvest composition of the study area. This paper is based on the ...

  14. Lagos Journal of Library and Information Science: Editorial Policies

    African Journals Online (AJOL)

    Focus and Scope. Mission Lagos Journal of Library and Information Science aims to be a world class professional and scholarship journal. Vision To serve as a vehicle for the dissemination of research results. To provide a credible platform for scholarly communication. To promote intellectual discourse among library, ...

  15. Physico-chemical properties of municipal refuse in Lagos metropolis ...

    African Journals Online (AJOL)

    This study investigated the activities of micro organisms involved in the degradation of organic matter in solid wastes and their potential to produce cellulolytic enzymes. Soil samples of decomposing waste piles were collected from four designated landfill sites in Lagos metropolis and analyzed for physicochemical ...

  16. Children's Perception of Television Commercial in Lagos State ...

    African Journals Online (AJOL)

    This constitutes one of the major problems confronting television advertising to children. The aim of this study is to determine the effect of children age on their understanding of television commercial in Lagos State, Nigeria. It will also consider the type of commercial watched, what interest the children and promotional theme ...

  17. A Review of Nosocomial Infection at the Lagos university Teaching ...

    African Journals Online (AJOL)

    The infection control program of the Lagos Universityteaching hospital was started in 1974 with an Infection Control team reporting to an Infection Control Committee. There is currently no functioning ... were the most common pathogens accounting for 75% of all organisms isolated. The prevalence of Staphylococcus aureus ...

  18. An institutional survey of female genital mutilation in Lagos, South ...

    African Journals Online (AJOL)

    Background: Female genital mutilation (FGM) as a procedure can have serious physical and psychological health consequences in girls and women. Objectives: To determine the prevalence of FGM and the socio-demographic factors which influence the practice among women in Lagos State. Methods: This was a ...

  19. Cases of ectopic pregnancies as seen in Lagos State University ...

    African Journals Online (AJOL)

    Objective: To determine the prevalence rate, the major forms of ectopic pregnancy and to correct some of the inadequacies in filling of the laboratory forms. Materials and Methods: Relevant data on 91 ectopic pregnancy specimens received at the Lagos State University Teaching Hospital (LASUTH), Ikeja between May 1 ...

  20. Islam and Hausa culture | Adeleke | Lagos Notes and Records

    African Journals Online (AJOL)

    Lagos Notes and Records. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 10 (2004) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register. DOWNLOAD FULL TEXT Open Access DOWNLOAD FULL TEXT ...

  1. AMBIENT AIR PARTICULATE MATTER IN LAGOS, NIGERIA: A ...

    African Journals Online (AJOL)

    ... at three locations in Lagos, Nigeria were analyzed by the combination of wavelength-dispersive X-ray fluorescence and atomic absorption spectroscopy methods. Elemental concentrations were subjected to factor analysis for source identification and chemical mass balance model was used for source apportionment.

  2. Prevalence and Trends in Breast Cancer in Lagos State, Nigeria

    African Journals Online (AJOL)

    Nekky Umera

    Abstract. The study examined the trends in the prevalence of breast cancer in Lagos. State, Nigeria. A sample of 1000 subjects was taken from a population consisting of women between the ages of 15 and 60 years spread across the. 20 Local Government Areas (LGAs) of the State. Fifty questionnaires were distributed in ...

  3. Recruitment Pattern Of Macrobrachium vollenhovenii In The Lagos ...

    African Journals Online (AJOL)

    Recruitment pattern of Macrobrachium vollenhovenii in the Lagos – Lekki Lagoon System was estimated from a time series length-frequency data of two years (April 2002 – May 2004). The annual recruitment pattern was estimate through back-projection, along a trajectory defined by the von Bertalanffy Growth Formula ...

  4. Personnel Recruitment and Retention Strategies in Lagos State Civil ...

    African Journals Online (AJOL)

    Nekky Umera

    Keywords: Lagos State Civil Service, Personnel Recruitment, Retention,. Performance .... involving intrinsic and extrinsic factors, the tendency is for employees to want to remain and work for the growth of the .... security amongst employees of the CS have gone a long way to influence their resolve to serve in LSCS for as ...

  5. Malaria and pneumonia occurrence in Lagos, Nigeria: Role of ...

    African Journals Online (AJOL)

    The role of climatic parameters in the prevalence and severity of some common diseases is being speculated in the face of changing climate of the world. We investigate this supposition by expounding the relationship between malaria, pneumonia, rainfall and air temperature over Lagos, Nigeria. This study uses ...

  6. Lagos Journal of Library and Information Science: Submissions

    African Journals Online (AJOL)

    The Lagos Journal of Library and Information Science will consider issues of interest to library users, including reports on user expectations and requirements generated both by libraries ... The journal will also cover technological issues which impact on library and information provision. ... Supply Chain Management, Vol.

  7. Russian culture and perestroika: An appraisal | Chukwube | Lagos ...

    African Journals Online (AJOL)

    Lagos Notes and Records. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 16 (2010) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register. DOWNLOAD FULL TEXT Open Access DOWNLOAD FULL TEXT ...

  8. Urban Renewal and Associated Problems in Lagos, 1924 – 1990 ...

    African Journals Online (AJOL)

    ... traffic congestion, increase in traffic noise, air pollution, flooding, and decadent infrastructure among others. Urban/municipal infrastructure which involves specifying, designing, constructing, and maintaining several services has never had it so good in Lagos. The coordination of these infrastructure networks and services, ...

  9. Assessment of household energy utilized for cooking in Ikeja, Lagos ...

    African Journals Online (AJOL)

    Household cooking energy accounts for a major part of the total energy consumed in Nigeria. Factors affecting the choice of Household energy utilized for cooking and the type preferred in Ikeja area of Lagos state were investigated in this study. Data were obtained through oral interview and administration of structured ...

  10. 64 The Impact of Urbanization on Housing Development: The Lagos ...

    African Journals Online (AJOL)

    `123456789jkl''''#

    1851 and the cession of Lagos to the British government in 1861, which ushered in an improved socio-political era, new groups of migrants were attracted to the city. Such groups included freed slaves from Brazil, Sierra-Leone, and from the hinterland. European merchants, missionaries, Egba christian refugees and traders.

  11. Music education and musical activities in Lagos: then and now ...

    African Journals Online (AJOL)

    This article is a historical excursion into the musical activities in Lagos from around 600 to 1800, which it classifies as the first phase, from around 1800 to 1914, the second period, and third period, from around 1914 up to date and how they have affected music education in the area. The study also highlights the roles played ...

  12. Quality of gari (roasted cassava mash) in Lagos State, Nigeria ...

    African Journals Online (AJOL)

    Gari is creamy-white, partially gelatinized roasted free flowing granular flour made from cassava roots. It is a major staple consumed in both urban and rural areas due to its convenience. Quality of Gari (roasted cassava mash) in Lagos, Nigeria was investigated. Gari samples were collected at random from different ...

  13. Gender-Equity and Reproductive Behaviour in Lagos State, Nigeria ...

    African Journals Online (AJOL)

    The study examined the impact of gender differences on couples' reproductive behaviour. The study was conducted in Ikeja, Ojo, Epe respectively representing urban, semi-urban and rural local government areas of Lagos State. Quantitative and qualitative data were collected. A multi-stage sampling procedure was ...

  14. Trend of Heavy Metal Concentrations in Lagos Lagoon Ecosystem

    African Journals Online (AJOL)

    komla

    The distribution and occurrence of heavy metals in the sediment, water and benthic animals of the Lagos lagoon ... sediment, water and animal samples collected from zones 1-3 of the lagoon that received most of the industrial effluents ..... drainage channels and streams continued increasing concentrations of heavy metals.

  15. Assessment of Subsurface Conditions in a Coastal Area of Lagos ...

    African Journals Online (AJOL)

    An integrated geophysical and geotechnical survey was carried out at Magodo Estate, Lagos, Nigeria. The buildings in this area are either sinking or intensively affected by severe cracks showing structural instability. The survey was aimed at characterizing the shallow subsurface in order to delineate features that may have ...

  16. Geophysical study of saline water intrusion in Lagos municipality ...

    African Journals Online (AJOL)

    Saline water intrusion presently constitutes serious concerns in the Lagos municipality just like many other coastal cities, thus necessitating its intervallic study. The present study involving 52 borehole logs (consisting of natural gamma and electrical resistivity components) was aimed at delineating intruded and vulnerable ...

  17. Cytomegalovirus antibodies among healthy blood donors at Lagos ...

    African Journals Online (AJOL)

    Objectives. Cytomegalovirus (CMV) is found worldwide in all geographical locations and socio-economic groups and is the virus most frequently transmitted to a developing child before birth. This study aimed to determine the prevalence and risk factors for CMV antibodies among healthy blood donors at Lagos University ...

  18. Perinatal Mortality Among Twins In Lagos University Teaching ...

    African Journals Online (AJOL)

    Background: Perinatal mortality rate is reported to be higher in twins than in singletons. More than two decades ago, Abudu and Agarin reported a twinning rate of 21.1/1000 maternities and perinatal mortality rate of 142.6/1000 among twins in Lagos. Objective: To determine the current perinatal mortality rate and risk factors ...

  19. John Lyons' Chomsky: A Review Essay | Eleshin | Lagos Notes and ...

    African Journals Online (AJOL)

    Lagos Notes and Records. Journal Home · ABOUT THIS JOURNAL · Advanced Search · Current Issue · Archives · Journal Home > Vol 18, No 1 (2012) >. Log in or Register to get access to full text downloads. Username, Password, Remember me, or Register. DOWNLOAD FULL TEXT Open Access DOWNLOAD FULL ...

  20. The Cold War and American Aid to Nigeria | Adeniji | Lagos ...

    African Journals Online (AJOL)

    The Cold War and American Aid to Nigeria. Abolade Adeniji. Abstract. No Abstract Available Lagos Historical Review Vol.3 2003: 112-131. Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT · http://dx.doi.org/10.4314/lhr.v3i1.32508 · AJOL African Journals Online. HOW TO ...

  1. Temporal variation in the ecology of Kuramo water, Lagos Nigeria ...

    African Journals Online (AJOL)

    Temporal variation in the ecology of Kuramo water was studied in the Lagos lagoon complex. Physicochemical parameters and heavy metals concentration were analyzed. Eight sites were marked using the geographical positioning system (GPS model-12). Water chemistry was determined for 8 months and sampling was ...

  2. An audit of hysterectomy at the Lagos University Teaching Hospital ...

    African Journals Online (AJOL)

    Context: Hysterectomy is a common major gynaecological operation in many nations of the world. Significant morbidities and death have been associated with the procedure. Objective: To identify the indications, types and peri-operative events associated with hysterectomy in Lagos. Study design: A retrospective study ...

  3. Knowledge And Attitude Of Youth Corps Members In Lagos To ...

    African Journals Online (AJOL)

    Sickle cell disease has remained a public health problem in Nigeria. This study was carried out to determine the knowledge and attitudes of unmarried NYSC members in Lagos State to sickle cell disease and screening. This study was a cross sectional study. Multistage sampling technique was used to select the ...

  4. The pattern and challenges of infertility management in Lagos, Nigeria

    African Journals Online (AJOL)

    EB

    Abstract. Background: Infertility remains a threat to successful reproduction by couples desirous of pregnancy. Objective: To determine the pattern of infertility cases amongst infertile couples seeking care in Lagos University Teaching. Hospital as well as challenges in their management. Methods: A review of the ...

  5. Information Technology Usage by Advertising Agencies in Lagos ...

    African Journals Online (AJOL)

    The study investigated the usage of information technology (IT) by advertising agencies in Lagos, Nigeria. Thirty-four agencies were randomly sampled from a list of 76 registered advertising agencies. Each of these agencies had at least four basic departments. One professional was randomly selected from each of the ...

  6. Patent Medicine Vendors in Rural Areas of Lagos Nigeria ...

    African Journals Online (AJOL)

    Purpose: To determine the compliance of patent medicine vendors (PMVs) in rural areas of Lagos State, Nigeria with set guidelines to regulate their practice and its implications for malaria control. Methods: A baseline cross-sectional study was conducted as part of an intervention study in two rural local government areas ...

  7. Immediate replacement of lost teeth in a tertiary hospital, Lagos ...

    African Journals Online (AJOL)

    Methods: Records of patients who attended the Restorative Dentistry clinics of Lagos University Teaching Hospital (LUTH) over a period of ten months were retrieved. Demographic data including patient's occupation was collected. Clinical history including tooth/teeth indicated for immediate replacement, treatment obtained ...

  8. Pattern of juvenile periodontitis in Lagos University Teaching ...

    African Journals Online (AJOL)

    Objective: The aim of the survey was to study the pattern of juvenile periodontitis patients that presented at the Lagos University Teaching Hospital Dental Centre from November 1999 to March 2004. Methods: Through review of case files of patients, twenty six juvenile periodontitis patients, within the age range of 18 and 30 ...

  9. História natural dos amborés e peixes-macaco (Actinopterygii, Blennioidei, Gobioidei do Parque Nacional Marinho do Arquipélago de Fernando de Noronha, sob um enfoque comportamental Natural history focus blennies and gobis behaviour (Actinopterygii, Blennioidei, Gobioidei from Fernando de Noronha Archipelago

    Directory of Open Access Journals (Sweden)

    Liana de F. Mendes

    2006-09-01

    Full Text Available Os amborês e peixes-macaco, como são popularmente conhecidos gobiídeos e bleniídeos, são elementos dominantes da fauna de pequenos peixes bentônicos e litorâneos que habitam recifes tropicais, compondo grande parte da alta diversidade das espécies de pequeno porte encontrada no Atlântico ocidental. O estudo da distribuição e história natural dos gobióides e blenióides de Fernando de Noronha foi desenvolvido através de observações de campo. Além da descrição dos hábitats preferenciais foram abordados aspectos sociais tais como, habitat preferencial, interações intra- e interespecíficas, comportamento domiciliar e territorial, e comportamento reprodutivo. A maioria das espécies em foco apresenta distribuição principalmente litorânea, são gregárias, com áreas domiciliares relativamente pequenas em torno de 2 x 2 m², pouco agressivas, tendo sido ocasionalmente registradas curtas perseguições intra- e interespecíficas. A baixa agressividade registrada, em comparação com outros peixes é provavelmente associada à adaptação à ocupação de pequenas áreas, como é o caso das poças de marés, pois um grande número de interações agressivas representaria um gasto de energia desnecessário. No geral, as espécies possuem coloração críptica, associada à evitação de predadores. Apenas nestas épocas de reprodução foi observada a intensificação da agressividade, com comportamento territorial - defesa de território incluindo mordidas e perseguições.The gobis and blenis (Gobiidae and Bleniidae are the most important group of small benthic littoral fishes in tropical reefs, representing most of the high number of small fish species found in Western Atlantic. The natural history of gobiid and bleniid fish from Fernando de Noronha was assessed by means observation sessions using both snorkelling and scuba diving. Most of these observations were aimed at social behaviour, such as intra and interespecific

  10. Análisis de la industria cultural en el pacto de integración sub-regional andino

    Directory of Open Access Journals (Sweden)

    Nilo Fernández

    2004-01-01

    Full Text Available El objetivo general de la presente investigacion fue realizar un analisis de la industria cultural en el pacto de la integracion Sub-regional Andino, destancado el papel fundamental de esta industria como entidad de comunicacion que se construye y se modela a travez de signos culturales que se encuentran en la cotidianidad, en el discurso social y surgidas de realidades entrelazadas, siendo los medios de comunicacion los que hacen percibirlo de otra manera. Las bases teoricas describen como algunos elementos tento del contexto multidimensional de la region andina como elemento socio-juridicos y culturales influyen los aportes de autores tales como: Lorena Rincon, Lucrecia Morales, German Rey, Bernardo Klisberg, Marcelino Bisbal y Nestor Garcia Canclini, entre otros. El tipo de investigacion que se selecciono fue la descriptiva documental; para la cual se utilizo como instrumento de analisis una guia de observacion que permitio ubicar las principales categoria, sub-categorias y las unidades de analisis, de ocho (8 documentos (convenios, acuerdos y declaraciones que constituyeron en una muestra intencional de un total de 16 documentos seleccionados como poblacion inicial que conforman las bases de los pactos que ha suscrito la comunidad Andina de Naciones. Con referencia al analisis e interpretacion de los resultados, se constituyem en hallazgos los planteamientos ubicados en cada uno de los documentos estudiados confirmandose el papel central que juega la industria cultural para la integracion Sub-regional Andina, a pesar de no ser explico en algunos de los documentos.

  11. Diversidad de flora vascular del Chocó Andino en el área de Selva Virgen, Ecuador

    Directory of Open Access Journals (Sweden)

    Ximena Aguirre Ulloa

    2016-06-01

    Full Text Available El bosque junto a la Hostería Selva Virgen, ubicado en el noroccidente de Pichincha, zona del Chocó Andino, es uno de los sitios de alta biodiversidad (hotspot del mundo; lo cual se determinó en el análisis de su flora vascular. Para dicho análisis se implementó un muestreo con transectos temporales de 50 x 4 y 50 x 2 m que cubren una superficie de 0.1 hectáreas. Se calcularon los índices de Sorensen, Simpson y Shannon, con el programa Past, obteniéndose los siguientes resultados: 159 especies (spp. registradas, que corresponden a 121 géneros y 54 familias. Las familias con mayor número de especies fueron: Moraceae 15 spp, Rubiaceae 10 spp, Arecaceae 9 spp, Fabaceae 9 spp, Melastomataceae 8 spp y Meliaceae 8 spp. La diversidad obtuvo un valor de 0.95 en el índice de Simpson, que se interpreta como alta diversidad. La riqueza fue de 0.33, riqueza media. El índice de Sorensen identifica espacios que comparten el mayor número de especies. El endemismo es bajo: 6.25%. La alta biodiversidad encontrada en el bosque, demuestra una riqueza biológica importante, que sugiere la realización de más estudios en esta zona poco explorada desde el punto de vista biológico.

  12. Efectos reglamentarios y jurisdiccionales del derecho comunitario Andino sobre el derecho administrativo colombiano

    OpenAIRE

    Montes Sarmiento, Maria Alejandra

    2012-01-01

    Este trabajo se soporta sobre una base conformada por dos conceptos, que constituyen el horizonte contextual de la investigación: Derecho Administrativo y Comunidad de integración. Es claro que al hablar de una Comunidad de integración específica como la Comunidad Andina (CAN), incide de forma directa en la actividad del derecho administrativo.Ha sido necesario que los países que conforman los grupos de integración económica cedan parte de sus competencias para crear un ordenamiento jurídico ...

  13. Una nueva especie ecuatoriana del género de peces andinos Grundulus (Characiformes: Characidae

    Directory of Open Access Journals (Sweden)

    César Román-Valencia

    2005-09-01

    Full Text Available Se describe Grundulus quitoensis nueva especie (Characiformes, Characidae proveniente de las Lagunas El Voladero reserva biológica El Angel al norte de Ecuador. El nuevo taxon se distingue de las demás especies por el menor número de radios simples en la aleta anal (tres vs. cuatro a cinco y en las aletas pectorales (uno vs. dos a tres, por el mayor número de dientes en cada dentario (12- 14 vs. 8-10, perfil ventral posterior a la cintura pectoral hasta el origen de la aleta anal plano (vs. curvo, el segundo infraorbital es tres veces más grande que el primero (vs. dos veces más grande, el tercer infraorbital está separado del preopérculo (vs. en contacto con la superficie del preopérculo, dentario presenta cuatro pequeñas fenestras en el margen infero-lateral (vs. uno a dos, el premaxilar presenta un proceso lateral largo (vs. corto, maxilar con dos muescas en la superficie infero-lateral (vs. maxilar con una muesca en la superficie inferolateral.A new Ecuadorian species of the Andean fish genus Grundulus (Characiformes: Characidae. The new species Grundulus quitoensis is described from El Voladero Lake, El Angel Biological Reserve, Northern Ecuador. The new taxon can be distinguished from all congeners by the following characters, respectively: a low number of unbranched rays in the anal fin (three vs. four-five and in pectoral fins (on vs. two - three, a higher number of dentary teeth (12-14 vs. 8-10, a second infraorbital about three times larger than the first (vs. about two times larger, a third infraorbital which is not in contact with the preopercle (vs. in contact with preopercle, the presence of four small fenestrae in the infero-lateral bone dentary (vs. one - two; and a premaxilla which presents a long lateral process (vs. short, a maxilla with two notches in the infero-lateral surface (vs. one notch in the infero-lateral surface. Rev. Biol. Trop. 53(3-4: 537-544. Epub 2005 Oct 3.

  14. Autoridad y memoria entre los killakas. Las estrategias discursivas de don Juan Colque Guarache en el sur andino (Siglo XVI)

    OpenAIRE

    Graña, Mario Julio

    2014-01-01

    Entre 1575 y 1577, don Juan Colque Guarache, cacique principal de las etnias killaka, asanaque, sivaroyo,haracapi y uruquilla del sur del lago Poopó, actual Oruro (Bolivia)eleva a consideración de las autoridades españolas una serie de "Probanzasde Méritos y Servicios" de sus antepasados. Esta fuente permite explorar la narración de la historia de un linaje indígena, a la luz de las estrategias discursivas empleadas por las autoridades étnicas dentro del contexto colonial.En este sentido, se ...

  15. Human papillomavirus (HPV infection and vaccines: Knowledge, attitude and perception among female students at the University of Lagos, Lagos, Nigeria

    Directory of Open Access Journals (Sweden)

    Christian Chigozie Makwe

    2012-12-01

    Conclusion: The knowledge of and the perceived susceptibility to HPV infection and HPV-related diseases among female students in the University of Lagos were generally low. The need for a well-designed HPV-educational program to bridge the knowledge gap cannot be overemphasized.

  16. La mitigación de heladas en los camellones del altiplano andino

    Directory of Open Access Journals (Sweden)

    2003-01-01

    . Higher wind velocity or higher air relative humidity also enhances the frost mitigation effect. El sistema de camellones o “waru warus” es una antigua técnica agrícola de manejo del suelo y del agua. En los tiempos prehispánicos era muy frecuente en la región del lago Titicaca. Consiste esencialmente en una serie de plataformas de tierra rodeadas por canales de agua. Las plantas se cultivan sobre las plataformas y el nivel del agua en los canales puede controlarse a través de entradas y salidas de agua. Un beneficio importante y ampliamente reconocido de este sistema de manejo en el altiplano es su contribución a la mitigación de heladas nocturnas durante la campaña agrícola. Con el objetivo de cuantificar este fenómeno y describir los procesos físicos responsables de la mitigación, se ha realizado un experimento en la región del lago Titicaca sobre un sistema de camellones cultivado con papas comparándolo con una parcela “testigo” en la “Pampa”. Se presentan resultados experimentales que evidencian por una parte, el valor elevado de la temperatura del agua con respecto a la del cultivo sobre las plataformas, y por otra, una temperatura de cultivo siempre mayor (1-2 grados en los camellones que en la Pampa. Conjuntamente se presenta un modelo mecanístico adaptado de un esquema de transferencia bi-capa de tipo “Shuttleworth-Wallace” (una capa de vegetación y un sustrato de agua. El modelo precisa el papel que juegan los canales en la dinámica del calor y por lo tanto en la variación de la temperatura del cultivo durante la noche. El efecto de mitigación se debe al flujo de calor que emana del agua y a menudo también a la condensación del vapor de agua sobre las hojas del cultivo. Utilizando el modelo de manera predictiva, se muestra que canales más anchos o plataformas más estrechas tienen un impacto positivo sobre la temperatura mínima del cultivo alcanzada durante la noche. Aumentar la profundidad del agua mejora también la mitigaci

  17. Datos geográficos de los murciélagos (Chiroptera en el Neotrópico

    Directory of Open Access Journals (Sweden)

    Elkin A. Noguera-Urbano

    2014-03-01

    Full Text Available Los esfuerzos globales para digitalizar los datos de ocurrencia de la biodiversidad en colecciones, museos y otras instituciones han estimulado el desarrollo de herramientas para mejorar el conocimiento y conservación de la biodiversidad. La “Global Biodiversity Information Facility” GBIF permite el acceso a más de 321 millones de registros, alojados en 379 instituciones. Los murciélagos neotropicales son un grupo muy diverso y especializado y la información geográfica del grupo se ha incrementado desde hace unos años, pero son pocos los reportes acerca del tema. El objetivo de este estudio fue analizar el número de registros disponibles en GBIF de los murciélagos neotropicales de 21 países de América. Por lo tanto, se evaluó la consistencia del nombre científico y la calidad geográfica a escala de país. Además, se evaluaron vacíos de información sobre una grilla de 1° latitud y 1° longitud. Hubo cerca de 1/2 millón de registros, de los cuales el 58% no incluyeron coordenadas geográficas; el 52% pasaron las dos evaluaciones. Se estimó que el 54% del área geográfica analizada no tiene registros; los vacíos están en centros de biodiversidad como la Amazonía y la Patagonia. En conclusión nuestros resultados sugieren que los datos disponibles en GBIF tienen sesgos geográficos y en los nombres científicos. Los datos de GBIF representan parcialmente las riquezas de murciélagos, además los principales vacíos de información se encuentran en América del Sur.

  18. Recursos hídricos en los Andes: Lago Titicaca

    Directory of Open Access Journals (Sweden)

    1995-01-01

    Full Text Available RESSOURCES EN EAUX DANS LES ANDES : LAC TITICACA. Une analyse par régression a été menée entre les variations de niveau du Lac Titicaca et les entrées du système (apports des affluents et précipitations. Les coefficients de corrélation, quoique relativement faibles, montrent aux abords du lac un effet de persistance qui diminue lorsque les stations sont éloignées du plan d’eau. L’inertie du lac se manifeste l’année suivante pour les affluents du lac et évidemment pour le lac lui-même. Ces résultats confirment la présence d’un mécanisme de rétro alimentation (effet boomerang. Cela montre que le système du Lac Titicaca est fragile, face à une utilisation excessive de ses eaux. Las regresiones estudiadas de cambios de nivel en el lago Titicaca contra precipitaciones y aportes en su cuenca, aunque relativamente bajas, muestran un efecto de persistencia en las proximidades del lago que decrece conforme las estaciones se alejan de éste. Lo que evidencia que la inercia del lago se manifiesta en el período siguiente (lag uno en los afluentes del lago y obviamente en el propio lago, fenómeno que parece confirmar la presencia de un mecanismo de retroalimentación (efecto boomerang. Este comportamiento muestra la fragilidad del lago frente a un aprovechamiento consuntivo excesivo. WATER RESOURCES IN THE ANDES: LAKE TITICACA. The studied regressions of the level changes in the Lake Titicaca versus the rainfall and the runoff in the basin, even being relatively low, show an effect of persistence in the proximity of the lake which decreases as we go away from it. This makes evident that the lake inertia manifests itself the following period (lag one in the lake tributaries and obviously in the lake itself, phenomenon which seems to confirm the presence of a feedback mechanism (boomerang effect. This behaviour shows the fragility of the lake against the excessive consumptive uses of the waters in its basin.

  19. Road Traffic Injury in Lagos, Nigeria: Assessing Prehospital Care.

    Science.gov (United States)

    Ibrahim, Nasiru A; Ajani, Abdul Wahab O; Mustafa, Ibrahim A; Balogun, Rufai A; Oludara, Mobolaji A; Idowu, Olufemi E; Solagberu, Babatunde A

    2017-08-01

    Introduction Injuries are the third most important cause of overall deaths globally with one-quarter resulting from road traffic crashes. Majority of these deaths occur before arrival in the hospital and can be reduced with prompt and efficient prehospital care. The aim of this study was to highlight the burden of road traffic injury (RTI) in Lagos, Nigeria and assess the effectiveness of prehospital care, especially the role of Lagos State Ambulance Service (LASAMBUS) in providing initial care and transportation of the injured to the hospital. A three-year, retrospective review of road traffic injured patients seen at the Surgical Emergency Room (SER) of the Lagos State University Teaching Hospital (LASUTH), Ikeja, Nigeria, from January 1, 2012 to December 31, 2014 was conducted. Parameters extracted from the Institution Trauma Registry included bio-data, date and time of injury, date and time of arrival in SER, host status, type of vehicle involved, and region(s) injured. Information on how patients came to the hospital and outcome in SER also were recorded. Results were analyzed using Statistical Package for Social Sciences (SPSS; IBM Corporation; Armonk, New York USA) version 16. A total of 23,537 patients were seen during the study period. Among them, 16,024 (68.1%) had trauma. Road traffic crashes were responsible in 5,629 (35.0%) of trauma cases. Passengers constituted 42.0% of the injured, followed by pedestrians (34.0%). Four wheelers were the most frequent vehicle type involved (54.0%), followed by motor cycles (30.0%). Regions mainly affected were head and neck (40.0%) and lower limb (29.0%). Less than one-quarter (24.0%) presented to the emergency room within an hour, while one-third arrived between one and six hours following injury. Relatives brought 55.4%, followed by bystanders (21.4%). Only 2.3% had formal prehospital care and were brought to the hospital by LASAMBUS. They also had significantly shorter arrival time. One hundred and nine patients

  20. GRUPOS FUNCIONALES DE PLANTAS EN BORDES DE AVANCE CON POTENCIAL PARA LA RESTAURACIÓN DE UN BOSQUE ALTO ANDINO

    Directory of Open Access Journals (Sweden)

    Carolina Castellanos Castro

    2011-01-01

    Full Text Available El estudio de grupos funcionales de plantas es una herramienta útil en la identificación de características ecológicas de importancia en la regeneración de una comunidad. El objetivo de este estudio fue la identificación de grupos funcionales de plantas en bordes de avance de un bosque alto andino y la evaluación de su importancia en el curso de la sucesión secundaria en pastizales abandonados. Con base en levantamientos de vegetación de 10 x 10m y en la revisión de atributos vitales de las especies registradas, se realizó una clasificación multivariante de las especies en grupos emergentes de plantas. Los atributos más importantes para la clasificación de los grupos emergentes fueron el método de dispersión, la formación de un banco de semillas y la presencia de propagación vegetativa y asociada a esta la ramificación basal de tallo. Se definieron tres grupos para las especies de estrato herbáceo y tres para las del estrato arbustivo-arbóreo, los cuales reúnen especies con estrategias morfo-fisiológicas similares. Dentro de los grupos definidos, las especies herbáceas dispersadas por diversos medios abióticos y las especies arbustivas con ramificación basal dispersadas por viento y por aves parecen ser claves en la colonización del terreno dominado por H. lanatus y en la facilitación del establecimiento de especies de bosque secundario.

  1. Impacto de la fragmentación en la diversidad de plantas vasculares en bosques andinos del nororiente de Colombia

    Directory of Open Access Journals (Sweden)

    Esteban Alvarez Dávila

    2013-12-01

    Full Text Available En este trabajo analizamos la relación entre variables a escala del paisaje (área del fragmento, forma, conectividad, altitud, contraste de borde, tipo de bosque, etc. y la riqueza de plantas vasculares en un bosque andino del norte de Colombia. Con base en un mapa de vegetación escala 1:10.000, seleccionamos 39 fragmentos al azar (de un total de 700 y en cada uno de ellos establecimos al menos una parcela de 200 m2 donde se contó el número total de especies de plantas vasculares. La muestra estuvo constituida por fragmentos entre 1 ha y 840 ha distribuidos en un gradiente altitudinal entre los 1800 y 2800 msnm. En las 60 parcelas establecidas (1.2 ha en total encontramos  108 familias, 259 géneros y 556 especies de plantas vasculares, demostrando la alta biodiversidad que pueden albergar los bosques fragmentados de los andes. La riqueza de especies estuvo entre 34 y 74 por parcela de 200 m2. El análisis mostró que las variables individuales más relacionadas con la riqueza de especies (de acuerdo con el coeficiente r de Pearson son el área total del fragmento (r = 0.43, p<0.001, n = 60, el área central del fragmento (r = 0.49, p<0.001, n = 60 y el contraste de borde del fragmento (r = - 0.48, p<0.001, n = 60. Finalmente, construimos diferentes modelos de regresión múltiple que explican hasta el 32.6 % de la variación de la riqueza de especies de cada fragmento. Discutimos la utilidad del modelo para la identificación prioridades de conservación a pequeña escala.

  2. Hematological profile of normal pregnant women in Lagos, Nigeria

    Directory of Open Access Journals (Sweden)

    Akinbami AA

    2013-05-01

    Full Text Available Akinsegun A Akinbami,1 Sarah O Ajibola,2 Kabiru A Rabiu,3 Adeniyi A Adewunmi,3 Adedoyin O Dosunmu,1 Adewumi Adediran,4 Vincent O Osunkalu,4 Bodunrin I Osikomaiya,5 Kamal A Ismail,51Department of Haematology and Blood Transfusion, Lagos State University, College of Medicine, 2Department of Haematology and Blood, Lagos University Teaching Hospital, 3Department of Obstetrics and Gynaecology, Lagos State University, College of Medicine, 4Department of Haematology and Blood, Faculty of Clinical Sciences, College of Medicine, University of Lagos, 5Department of Haematology and Blood Transfusion, Lagos State University Teaching Hospital, Lagos, NigeriaBackground: Hematological profile is considered one of the factors affecting pregnancy and its outcome. Anemia is the most common hematological problem in pregnancy, followed by thrombocytopenia. Leukocytosis is almost always associated with pregnancy. The study reported here was designed to evaluate the overall mean values of seven major hematological parameters and their mean values at different trimesters of pregnancy.Subjects and methods: This examination was a cross-sectional study of 274 pregnant women who registered to attend the Lagos University Teaching Hospital or Lagos State University Teaching Hospital antenatal clinics between their first and third trimester. Blood (4.5 mL was collected from each participant into a tube containing the anticoagulant ethylenediaminetetraacetic acid (EDTA. A full blood count was performed on each sample and the results were analyzed.Results: Overall, the values obtained were (mean ± standard deviation [SD]: hematocrit level, 30.16% ± 5.55%; hemoglobin concentration, 10.94 ± 1.86 g/dL; white blood cells, 7.81 ± 2.34 × 109; platelets, 228.29 ± 65.6 × 109; cell volume 78.30 ± 5.70 fL, corpuscular hemoglobin, 28.57 ± 2.48 pg; and corpuscular hemoglobin concentration, 36.45 ± 1.10 g/dL. When grouped by trimester, the mean ± SD value of packed cell volume

  3. Ethiopian-Sudanese Relations, 1974-1984 | Odesola | Lagos ...

    African Journals Online (AJOL)

    No Abstract Available Lagos Historical Review Vol.3 2003: 94-111. Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT · http://dx.doi.org/10.4314/lhr.v3i1.32507 · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More ...

  4. Atmospheric turbidity and the diffuse irradiance in Lagos, Nigeria

    International Nuclear Information System (INIS)

    Maduekwe, A.A.L.; Chendo, M.A.C.

    1994-06-01

    The relationships between the total hemispherical irradiance reaching the earth surface in Lagos, Nigeria and the turbidity coefficients at two wavelengths namely λ(500) and λ(880) measured with a Volz sun photometer have been investigated. Using simple piecewise linear regression relationships between the atmospheric turbidity using Angstrom turbidity coefficients and the diffuse components of solar radiation are presented. (author). 18 refs, 11 figs, 3 tabs

  5. Nigerian medical libraries in a digital age | Ibegwam | Lagos Journal ...

    African Journals Online (AJOL)

    No Abstract. Lagos Journal of Library and Information Science Vol. 1(2) 2003: 129-135. Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT · http://dx.doi.org/10.4314/ljlis.v1i2.35488 · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  6. Sedimentation History of Lago Guayabal, Puerto Rico, 1913-2001

    Science.gov (United States)

    Soler-López, Luis R.

    2003-01-01

    The Lago Guayabal dam, located in the municipality of Villalba in southern Puerto Rico, was constructed in 1913 for irrigation of croplands in the southern coastal plains and is owned and operated by the Puerto Rico Electric Power Authority. The reservoir had an original storage capacity of 11.82 million cubic meters and a drainage area upstream of the dam of 112 square kilometers. Sedimentation has reduced the storage capacity to 6.12 million cubic meters in 2001, which represents a storage loss of about 48 percent. However, the actual sediment accumulation in the reservoir during the 88 years is greater, because some sediment removal was conducted between 1940 and 1948 by dredging and sluicing. This report summarizes the historical data from a 1913 land survey and eight bathymetric surveys conducted between 1914 and 2001, and the relation of high sedimentation to agricultural land practices within the Lago Guayabal basin and six major hurricanes which made landfall on the island. The reservoir had an area-normalized sedimentation rate of about 1,863 cubic meters per square kilometer per year between 1913 and 1936 from a 112 square kilometer basin. In 1972, a new dam upstream along the Rio Toa Vaca impounded runoff from 57.5 square kilometers, and sediment transport to Lago Guayabal was reduced. A comparison of bathymetric survey results between 1972 and 2001 indicates an area-normalized sedimentation rate of 1,120 cubic meters per square kilometer per year or about 60 percent of the rate between 1913 and 1936. The significant reduction (almost half) of the sedimentation rate after the Toa Vaca dam was built may indicate that erosion susceptibility of the Rio Toa Vaca watershed is about twice that of the Rio Jacaguas watershed impounded by Lago Guayabal.

  7. A thematic introduction of knowledge management | Dina | Lagos ...

    African Journals Online (AJOL)

    No Abstract. Lagos Journal of Library and Information Science Vol. 1(2) 2003: 172-178. Full Text: EMAIL FULL TEXT EMAIL FULL TEXT · DOWNLOAD FULL TEXT DOWNLOAD FULL TEXT · http://dx.doi.org/10.4314/ljlis.v1i2.35494 · AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians ...

  8. Responsabilidad Social Empresarial. Caso Centro Comercial Lago Mall

    Directory of Open Access Journals (Sweden)

    Carlos E. Torres Geisse

    2011-01-01

    Full Text Available El objetivo del artículo es el análisis de la responsabilidad empresarial para el centro comercial Lago Mall. El tipo de investigación fue un proyecto factible, descriptivo y de campo, con un diseño de tipo no experimental y transeccional. Se consideró como población al gerente de mercadeo del C.C Lago Mall, a quince (15 miembros de la comunidad interna, y a noventa (90 miembros de la comunidad externa del mismo. Las técnicas de recolección de datos aplicadas fueron: la encuesta y la entrevista. Los instrumentos fueron validados por cinco (5 expertos en gerencia social, obteniendo una confiabilidad de 0,99. Los resultados indican que en ambas dimensiones de la RSE los elementos que la integran no constituían un marco ideal para considerar a la empresa C.C. Lago Mall como socialmente responsable. Se concluye que el mismo carece de programas formales de responsabilidad social empresarial; sin embargo demuestra un compromiso con los principios de la empresa y con los valores de los empleados, donde se destacan la dignidad, identidad e integridad por los grupos de interés que se han denominado internos y externos.

  9. Behavioral pattern of commercial public transport passengers in Lagos metropolis

    Directory of Open Access Journals (Sweden)

    Oluwaseyi Joseph Afolabi

    2017-05-01

    Full Text Available This study examined the travel behavior of commercial public transport passengers in Lagos State, Nigeria. The descriptive research survey was used in order to assess the opinions of the respondents using the questionnaire. A total of 84 samples were used as representative population, while two null hypotheses were formulated and tested using the Pearson Product Moment Correlation Coefficient at 0.05 level of significant. The results that were obtained indicated that a positive correlation exists between frequency of   travel and commuters income in Lagos Metropolis and also that a positive correlation exists between frequency of travel and distance covered by commuters in Lagos Metropolis. Secondary data was also sourced to serve as complement to the primary data, thus allowing for a robust research. Descriptive statistical tools such as percentages were also adopted to present the socio-economic characteristics in the area. Findings showed that about 57% of sampled population are male, 62 % are civil servants, 48% of respondents travel for business purposes. Also, that majority of the respondents (50% said that the commercial public transport is highly prone to accident, while about 64% of the respondents commute on daily basis. It was established that lack of transport infrastructure coupled with poor road maintenance were seen as the leading causes of inaccessibility of the area.

  10. Distribución y abundancia de murciélagos en bosques con diferente grado de intervención en el Parque Nacional Natural Gorgona (Colombia)

    OpenAIRE

    Oscar Enrique Murillo-García; María Juliana Bedoya-Durán

    2014-01-01

    Se cuantificó la variación de la comunidad de murciélagos en bosques con diferente grado de intervención en el Parque Nacional Natural Gorgona. Para esto se realizaron capturas en tres zonas (dos sitios en cada zona) durante tres eventos de muestreo. El análisis de datos consideró la detección imperfecta, permitiendo realizar una inferencia confiable acerca de los cambios en presencia, abundancia y riqueza entre tipos de coberturas. Los resultados evidenciaron una considerable variación en de...

  11. Propiedades magnéticas de sedimentos del Lago de Sanabria y su área fuente (NO España): implicaciones paleoambientales

    OpenAIRE

    Borruel, Violeta; Larrasoaña, Juan C.; Gómez-Paccard, Miriam; Rico, María Teresa; Valero-Garcés, Blas L.; Moreno, A.; Soto, Ruth

    2012-01-01

    El estudio preliminar de las propiedades magnéticas de los sedimentos recientes (Pleistoceno superior-Holoceno) acumulados en el Lago de Sanabria (Zamora, NO de España) y de las principales litologías que afloran en su área fuente han permitido diferenciar dos unidades en los sedimentos lacustres. La unidad basal, acumulada en un medio proglaciar entre 25.6 y 12.2 kyr BP, se caracteriza por unas propiedades magnéticas muy similares a las de las litologías del área fuente. La presencia de ...

  12. Somatotipo en jóvenes deportistas amateurs del mundo andino

    Directory of Open Access Journals (Sweden)

    Bejarano, Ignacio

    2005-01-01

    Full Text Available La técnica del somatotipo, de uso fundamental en antropología y medicina deportiva, describe conjuntamente la forma y la composición corporal de un sujeto. Así, sus tres cifras consecutivas reflejan los niveles de adiposidad, robusticidad musculo-esquelética y linearidad respectivamente. Se analiza aquí el somatotipo de participantes en los VI Juegos de la Juventud Transandina (San Salvador de Jujuy, Marzo 2003. Los deportistas de ambos sexos y edades entre los 8 y 20 años (n = 276, procedieron de Argentina, Bolivia, Chile y Perú donde existen regiones ubicadas a diferentes niveles de altitud geográfica. Las modalidades de competición fueron Básquet (n = 66, Volley (n = 82 y Natación (n = 128. Utilizando el método de Heath-Carter se estimaron las componentes de endomorfía, mesomorfia y ectomorfía en cada disciplina. Los valores medios fueron respectivamente Básquet: 4.50- 3.29- 3.20, Voley: 4.27-3.56- 3.09 y Natación: 3.40- 4.17- 2.99 para varones y 3.87- 3.90- 2.56 para mujeres. Para conocer el grado de homogeneidad se calcularon los índices de dispersión del somatotipo (SDI, observándose la mayor variabilidad en natación, seguido de Básquet y Voley. Los resultados se contrastaron con los reportados por otros autores tanto en países latinoamericanos como en otros continentes. Para ello se utilizaron estadísticos apropiados, como las distancias altitudinales medias (SAD. Frente a las series de élite comparadas y para las tres disciplinas, los jóvenes analizados presentan una endomorfia significativamente mayor, siendo las diferencias menores para los dos componentes restantes.

  13. Procesos de transformación de los bosques andinos en la microcuenca del río Guacha, Encino, Santander (1978-1994-2006.

    Directory of Open Access Journals (Sweden)

    Wilson Fernando Gómez Anaya

    2014-01-01

    Full Text Available En Colombia, los ecosistemas andinos presentan fuerte intervención demográfica y económica, por consiguiente los paisajes naturales son transformados y fragmentados en el tiempo. El presente artículo profundiza en la escala local sobre los procesos de transformación del paisaje mediante un estudio integrado del mismo y su evolución durante los últimos 28 años. Los resultados identifican 28 geosistemas en la microcuenca, de los cuales doce contienen un paisaje antrópico y trece conservan un grado de naturalidad alto, así mismo se registró una tendencia a la estabilidad de los procesos de cambio. Los bosques andinos presentan una pérdida de 7,37 ha por año o una tasa de 0,23 %, y las zonas con mayor intervención están asociadas a áreas núcleo, por ende aumentan los efectos de borde y fragmentación. Los resultados permitirán planificar la microcuenca a partir de los procesos históricos de uso y la condición del paisaje, para así facilitar la construcción de alternativas de uso y conservación de los geosistemas.

  14. LAS ELECCIONES DIRECTAS EN EL PARLAMENTO ANDINO. UN CAMINO PARA FORTALECER SU PAPEL COMO INSTITUCIÓN PROMOTORA DE LA INTEGRACIÓN

    Directory of Open Access Journals (Sweden)

    Silvana Insignares Cera

    2009-01-01

    Full Text Available El Parlamento Andino atraviesa por una serie de inconvenientes que le impiden cumplir su papel como órgano fundamental e institución promotora de la integración andina. A pesar de los intentos plasmados en los tratados constitutivos de la Comunidad, no se ha podido lograr que irradie su identidad legitimadora y fortalezca el carácter democrático fundamental para la evolución del proceso de integración en la Comunidad Andina. Las elecciones directas son una herramienta para que el Parlamento Andino se convierta en un pilar a nivel de las instituciones comunitarias, que permita reforzar el concepto de ciudadanía andina, así como la participación política de los pueblos de los Estados miembros, para que no continúen de espaldas al proceso unificador y se conviertan en pueblo unitario, actor relevante de la comunidad internacional.

  15. Alcance del principio de eficacia directa del derecho comunitario andino en el ámbito de la propiedad industrial y del derecho del consumidor en el ordenamiento jurídico colombiano

    OpenAIRE

    Pachón Guerrero, Juan Sebastián

    2017-01-01

    Tesis sobre el alcance del principio de eficacia directa del derecho comunitario andino en el ámbito de la propiedad industrial y del derecho del consumidor en el ordenamiento jurídico colombiano Thesis related to the scope of the principle of direct effectiveness of andean community law in the field of industrial property and consumer law in the Colombian legal system

  16. Analysis of Management Practices in Lagos State Tertiary Institutions through Total Quality Management Structural Framework

    Science.gov (United States)

    AbdulAzeez, Abbas Tunde

    2016-01-01

    This research investigated total quality management practices and quality teacher education in public tertiary institutions in Lagos State. The study was therefore designed to analyse management practices in Lagos state tertiary institutions through total quality management structural framework. The selected public tertiary institutions in Lagos…

  17. Intrigues and Twist in the Imamate Crisis of Lagos Central Mosque ...

    African Journals Online (AJOL)

    The period between 1847 to 1947 was a chequered one in the history of Islam and especially the Imamate in Lagos. After establishing the Imamate, the Lagos Muslim community found the traditional authority as a pillar of support and much later the colonial authority. The crisis, that bedevilled the community from one time ...

  18. The Succession Dispute to the Throne of Lagos and the British ...

    African Journals Online (AJOL)

    info

    Abstract. This paper examined the role and intervention of the British in the internal family dispute relating to the succession to the throne of Lagos that began in the early nineteenth century. That the usuper to the throne of Lagos, Kosoko who was branded a notorious slave trader was abdicated from the throne on the ...

  19. Ambulance Services of Lagos State, Nigeria: A Six-Year (2001 ...

    African Journals Online (AJOL)

    Ambulance Services of Lagos State, Nigeria: A Six-Year (2001–2006) Audit. ... The developed world has recognized the importance of organized emergency medical services and has well established systems. The Lagos State Government ... Analysis of the data was done using the Microsoft Excel software. RESULTS: A ...

  20. The growth and development of Islam in Epe, Lagos State, Nigeria ...

    African Journals Online (AJOL)

    The historiography of Islam in Epe, one of the coastal towns to the east of Lagos, deserves a much closer look, not only because Epe is one of the most Islamised towns on that axis, but also because the circumstances of the spread of Islam into the town was inextricably linked with events in the Lagos Kingdom, especially ...

  1. multivariate analysis of groundwater quality in parts of lagos-nigeria

    African Journals Online (AJOL)

    AKOTEYON

    The quality of twenty-six groundwater sources in Lagos state was evaluated. Data on physico-chemical parameters. (Hydrogen ion, Electrical Conductivity, Total Dissolve Solids, Calcium, Chloride, Total Hardness, Magnesium, Sodium,. Potassium, Bicarbonate and Sulfate) were collated from the database of Lagos Water ...

  2. Migration and Social Change in the Eastern District of Lagos: The ...

    African Journals Online (AJOL)

    The lagoon serves as a catalyst for economic development in the transformation of Lagos, most especially the eastern district. Fishing is central to the economy of Epe and the entire eastern section of Lagos. However, the fishing industry benefitted immensely from the migrating pattern and economic practices of the Mahin ...

  3. Potential drug–drug interactions in HIV-infected children on antiretroviral therapy in Lagos, Nigeria

    OpenAIRE

    Oshikoya, Kazeem Adeola; Lawal,Saheed; Awodele,Olufunsho; Ogunleye,Olayinka O.; Senbanjo,Idowu O.; Olufemi,Olayemi; Ezeaka,Veronica C.; Temiye,Edamisan O.; Titilope,Adeyemo; Opanuga,Oluranti; Lesi,Olufunmilayo A.; Akanmu,Sulaimon; Oreagba,Ibrahim A.

    2014-01-01

    Kazeem A Oshikoya,1 Ibrahim A Oreagba,2 Saheed Lawal,2 Olufunsho Awodele,2 Olayinka O Ogunleye,1 Idowu O Senbanjo,3 Sunday O Olayemi,2 Veronica C Ezeaka,4,5 Edamisan O Temiye,4,5 Titilope A Adeyemo,4,6 Oluranti Opanuga,4,7 Olufunmilayo A Lesi,4,8 Sulaimon A Akanmu4,6 1Department of Pharmacology, Lagos State University College of Medicine, Ikeja, Lagos, Nigeria; 2Department of Pharmacology, College of Medicine, University of Lagos, Idi-Araba, Lagos, Nigeria; 3Department of Paediatrics, Lagos S...

  4. Sedimentation Survey of Lago de Cidra, Puerto Rico, August 2007

    Science.gov (United States)

    Soler-López, Luis R.

    2010-01-01

    Lago de Cidra is a reservoir located on the confluence of Rio de Bayamon, Rio Sabana, and Quebrada Prieta, in the municipality of Cidra in east-central Puerto Rico, about 3.0 kilometers northeast of the town of Cidra. The dam is owned and operated by the Puerto Rico Aqueduct and Sewer Authority (PRASA), and was constructed in 1946 as a 6.54-million-cubic-meter supplemental water supply for the San Juan metropolitan area. The reservoir impounds the waters of Rio de Bayamon, Rio Sabana and Quebrada Prieta. The reservoir has a drainage area of 21.4 square kilometers. The dam is a concrete gravity and earthfill structure with a length of approximately 165 meters and a structural height of 24 meters. The spillway portion of the dam is an ungated ogee crest about 40 meters long with a crest elevation of 403.00 meters above mean sea level. Additional information and operational procedures are listed in Soler-Lopez (1999). During August 14-15, 2007, the U.S. Geological Survey (USGS), Caribbean Water Science Center (CWSC), in cooperation with the PRASA, conducted a bathymetric survey of Lago de Cidra to update the reservoir storage capacity and actualize the reservoir sedimentation rate by comparing the 2007 data with the previous 1997 bathymetric survey data. The purpose of this report is to describe and document the USGS sedimentation survey conducted at Lago de Cidra during August 2007, including the methods used to update the reservoir storage capacity, sedimentation rates, and areas of substantial sediment accumulation since 1997.

  5. Sedimentation Survey of Lago La Plata, Puerto Rico, July 2006

    Science.gov (United States)

    Soler-López, Luis R.

    2008-01-01

    Lago La Plata dam is located between the municipalities of Naranjito and Toa Alta in north central Puerto Rico, about 5 kilometers south of the town of Toa Alta and about 5 kilometers north of the town of Naranjito. The reservoir impounds the waters of the Rio de La Plata, the Rio Guadiana, and the Rio Ca?as, and is part of the San Juan Metropolitan Water District, which provides about 35 percent of the total water demand for the area (Soler-Lopez and others, 2000). The reservoir has a drainage area of about 469 square kilometers. The dam was constructed in 1974 and is a concrete gravity structure with a normal pool elevation of 52.00 meters above mean sea level (Puerto Rico Electric Power Authority, 1979). During October 1998, the U.S. Geological Survey (USGS), Caribbean Water Science Center, in cooperation with the Puerto Rico Aqueduct and Sewer Authority (PRASA) conducted a bathymetric survey of Lago La Plata to assess the impact of Hurricane Georges on the storage capacity of the reservoir. Between July 17 and 20, 2006, the USGS and the PRASA conducted an additional bathymetric survey of Lago La Plata to update the reservoir storage capacity and determine the reservoir sedimentation rate by comparing the 2006 survey data with the 1998 survey data.. The purpose of this report is to update the reservoir storage capacity, sedimentation rates, and areas of substantial sediment accumulation since 1998. Historical (1974) data are referenced as needed to account for long-term storage capacity loss trends...

  6. MICROORGANISMS ASSOCIATED WITH COMMERCIAL MOTORCYCLE HELMETS IN LAGOS METROPOLIS

    Directory of Open Access Journals (Sweden)

    Aniekpeno Elijah

    2012-04-01

    Full Text Available Microorganisms associated with commercial motorcycle helmets were investigated in the commercial city of Lagos, Nigeria. 300 motorcycle helmets were randomly collected from different commercial motor cyclists in two densely populated areas of Lagos: Yaba College of Technology (YABATECH and Lagos University Teaching Hospital (LUTH main gates respectively. Two sterile swabs moistened with sterile water were rotated over the inner surface of each helmet and cultured on MacConkey Agar and Nutrient Agar for bacterial growth and Sabouraud Dextrose Agar for fungi growth. The plates for bacteria growth were incubated aerobically at 37 ºC for 48 h, while plates for fungi at 28 ºC for 2 weeks. Biochemical tests were used to identify bacteria; while, cultural characteristics were used for fungi identification. The microorganisms consistently common to the samples investigated in the two locations were similar and included (with respective frequency of occurrence for both location: Staphylococcus aureus (80%; 7%, Pseudomonas aeruginosa (75%; 12%, Staphylococcus epidermis (60%; 8%, Enterobacter aerogenes (52%; 27%, Escherichia coli (40%; 13%, Bacillus spp (37%; 10%, Aspergillus spp (82%; 7%, Candida spp (55%; 22%, Rhizopus spp (40%; 27%, and Penicilium spp (35%; 12%. The motorcycle helmets collected at YABATECH had higher microbial colonization than LUTH irrespective of the isolates. This trend was similar for bacterial and fungi. Results showed that helmets could serve as vehicles for transmission of pathogens. Good hygiene practice (GHP and regular cleaning of motor cycle helmets with sterilants is strongly advocated in order to reduce the incidence of microbial transmission and its associated infection.

  7. Dog ecology and population studies in Lagos State, Nigeria.

    Science.gov (United States)

    Hambolu, Sunday Emmanuel; Dzikwi, Asabe A; Kwaga, Jacob K P; Kazeem, Haruna M; Umoh, Jarlath U; Hambolu, Dupe A

    2014-02-14

    Dog population dynamics have a major impact upon the effectiveness of rabies control strategies. As such, understanding domestic dog ecology has been recognized as central to the design of effective rabies control programmes. This study was conducted to determine the dog ecology in Lagos State using compound dog count and street dog count in the three senatorial districts (Lagos West, East and Central) of Lagos State from February, 2011 to January, 2012. A total of 546 questionnaires were distributed for the compound dog count and all were completed and returned. Various aspects of dog ecology were determined, including size, sex, breed of the dog population, management of dogs and rabies awareness among the respondents. Out of the 546 compounds surveyed, 518 (94.87%) owned at least one dog. A total of 1,427 dogs were counted from the street counts while a total of 1,447 dogs (2.8 dogs/compound) were counted from the compound count. The dogs comprised of 583 males and 864 females, out of which 64.10% are confined. The dog vaccination coverage in the dog population surveyed was 64.10% and administered majorly (91.30%) by veterinarians. Security (60%) and pets (26%) were the major reasons for keeping dogs. Majority (88.80%) of the respondents were aware of rabies and its mode of transmission, but still believed in the use of concoctions (40.40%), herbs (19.90%) and consumption of the organ of the offending dog (11.50%) for the treatment of rabies. The findings of this study showed a male: female ratio of dog to be 1:1.5 and a dog: human ratio of 1:5.6. There was also a responsible dog ownership as majority of the respondents do confine, vaccinate and provide food for their dogs. Vaccination coverage of the total dog population was however below the 70-80% target recommended by the World Health Organization to achieve herd immunity.

  8. Trayectorias de una recuperación en suspenso: ex Reserva Lago Viedma

    Directory of Open Access Journals (Sweden)

    Mariela Eva Rodríguez

    2009-07-01

    Full Text Available Este trabajo retoma dos dispositivos (discursos, prácticas institucionales, normativas, presupuestos morales, etc. implicados en el proceso de invisibilización de los pueblos originarios en la provincia de Santa Cruz: el estelionato y el sistema de orfanatos. En un recorrido que atraviesa diversas generaciones analizaré los efectos de la colonización llevada a cabo por el estado, cuyo resultado ha sido la enajenación de territorios, niños, identidades y memorias. La actualización de eventos traumáticos (en particular las interrupciones violentas de los vínculos familiares, la amenaza de las redes de poder local en la vida cotidiana y el impacto de concepciones hegemónicas sustentadas en modelos de "pureza" (racial-cultural que omiten prácticas de circulación (enclavando a los indígenas en "reservas", extranjerizando a los mapuche y negando alianzas con los tehuelche explican, parcialmente, las razones por las cuales un proyecto de recuperación en la ex Reserva Lago Viedma ha quedado en suspenso.This work focuses on two dispositifs (in a Foucauldean sense: discourses, institutional practices, normatives, moral assumptions, etc. involved on the invisibilization process suffered by indigenous peoples in the province of Santa Cruz: the stellionate (a criminal figure and the orphanage system. Traveling throughout different generations, I will analyze the effects of the colonization carried out by the state resulting in land, children, identities and memories dispossession. The following issues partially explain the reasons why a project of recovery in the ex Lago Viedma Reserve has been put in abeyance: the actualization of traumatic events (particularly violent interruptions of family ties, the threat posed by local power networks in everyday life, and the impact of hegemonic conceptions based on racial and cultural models of "purity" that hide circulation practices and reduce indigenous peoples to "reserves" (or reservations, while

  9. Human papillomavirus (HPV) infection and vaccines: knowledge, attitude and perception among female students at the University of Lagos, Lagos, Nigeria.

    Science.gov (United States)

    Makwe, Christian Chigozie; Anorlu, Rose Ihuoma; Odeyemi, Kofoworola Abimbola

    2012-12-01

    This study sought to determine knowledge of and attitude towards human papillomavirus (HPV) infection, HPV-related diseases and HPV vaccines among female undergraduate students at the University of Lagos. A self-administered questionnaire was administered between May and July 2010, to 368 female students aged 16-29years, who were selected from two faculties of the University of Lagos using two-stage sampling method. Data collected included: socio-demographic characteristics, sexual history, awareness and knowledge of HPV infection, cervical cancer and genital warts, and HPV vaccine; the perceived risk of acquiring genital HPV infection and developing cervical cancer or genital warts, and the willingness to receive an HPV vaccine. Only 64 (17.7%) and 52 (14.4%) of the students had ever heard of HPV infection and HPV vaccines respectively. The median HPV knowledge on a 15-item score was 2. Overall, only 11.1% knew that genital HPV infection can cause cervical cancer. Fourteen (6.9%) of those who were aware of cervical cancer agreed they were at risk of developing the disease. Of the 52 students who had heard of the HPV vaccine, 24 (46.2%) knew it was given for cervical cancer prevention and 30 (57.7%) expressed their willingness to receive the vaccine. The knowledge of and the perceived susceptibility to HPV infection and HPV-related diseases among female students in the University of Lagos were generally low. The need for a well-designed HPV-educational program to bridge the knowledge gap cannot be overemphasized. Copyright © 2012 Ministry of Health, Saudi Arabia. Published by Elsevier Ltd. All rights reserved.

  10. Dualidad y diálogo postcolonial: desmarginalización de la lengua popular y del pensamiento andino en Rosa Cuchillo, de Óscar Colchado Lucio

    Directory of Open Access Journals (Sweden)

    Víctor Quiroz

    2014-06-01

    Full Text Available En este artículo examinaremos cómo se inscribe la dualidad, aspecto fundamental de la racionalidad andina, en un texto literario. De este modo, estudiaremos la presencia activa de la dualidad tanto en el plano del contenido (el mundo representado cuanto en el plano de la expresión (el lenguaje y los mecanismos discursivos de Rosa Cuchillo (1997, la novela más importante del escritor peruano Óscar Colchado Lucio. Planteamos que la actualización de la dualidad en este texto contribuye a la desmarginalización y descolonización de la racionalidad andina con el fin de proponerla como un modo de pensamiento alternativo desde el que se pueden replantear los términos del diálogo entre lo occidental y lo andino más allá de las jerarquías coloniales.

  11. Potential drug–drug interactions in HIV-infected children on antiretroviral therapy in Lagos, Nigeria

    Directory of Open Access Journals (Sweden)

    Oshikoya KA

    2014-04-01

    Full Text Available Kazeem A Oshikoya,1 Ibrahim A Oreagba,2 Saheed Lawal,2 Olufunsho Awodele,2 Olayinka O Ogunleye,1 Idowu O Senbanjo,3 Sunday O Olayemi,2 Veronica C Ezeaka,4,5 Edamisan O Temiye,4,5 Titilope A Adeyemo,4,6 Oluranti Opanuga,4,7 Olufunmilayo A Lesi,4,8 Sulaimon A Akanmu4,6 1Department of Pharmacology, Lagos State University College of Medicine, Ikeja, Lagos, Nigeria; 2Department of Pharmacology, College of Medicine, University of Lagos, Idi-Araba, Lagos, Nigeria; 3Department of Paediatrics, Lagos State University College of Medicine, Ikeja, Lagos, Nigeria; 4APIN Clinic, Lagos University Teaching Hospital, Lagos, Nigeria; 5Department of Paediatrics, College of Medicine, University of Lagos, Idi-Araba, Lagos, Nigeria; 6Department of Haematology and Blood Transfusion, College of Medicine, University of Lagos, Idi-Araba, Lagos, Nigeria; 7Department of Pharmacy, Lagos University Teaching Hospital, Idi-Araba Lagos, Nigeria; 8Department of Medicine, College of Medicine, University of Lagos, Idi-Araba, Lagos, Nigeria Background: Multi-therapy is common in HIV-infected children, and the risk for clinically significant drug interactions (CSDIs is high. We investigated the prevalence of CSDIs between antiretroviral (ARV and co-prescribed drugs for children attending a large HIV clinic in Lagos, Nigeria. Methods: The case files of pediatric patients receiving treatment at the HIV clinic of the Lagos University Teaching Hospital (LUTH, Idi-Araba, between January 2005 and December 2010 were reviewed. The ARV and co-prescribed drug pairs were evaluated for potential interactions using the Liverpool HIV Pharmacology Group website. The potential interactions were rated as A (no known interaction, B (minor/no action needed, C (moderate/monitor therapy, D (major/therapy modification, and X (contraindicated/avoid combination. Results: Of the 310 cases reviewed, 208 (67.1% patients were at risk of CSDIs. Artemisinin-based combination therapy was prescribed for over one

  12. LA EVIDENCIALIDAD EN EL CASTELLANO ANDINO NARIÑENSE EVIDENTIALITY IN THE CASTILIAN SPANISH OF THE ANDEAN REGION OF NARIÑO

    Directory of Open Access Journals (Sweden)

    Ómar Andrés Portilla Melo

    2010-12-01

    Full Text Available Resumen En este texto se hace una descripción de un fenómeno de transferencia semánticopragmática a nivel modal del quechua al castellano andino de la región nariñense. El trabajo está organizado de la siguiente manera: en primer lugar, se introduce el concepto de evidencialidad; después, se hace una breve descripción histórica del quechua y una introducción a su tipología, y, finalmente, se explica la manera en que el contacto lingüístico quechua-español le dio al castellano andino nariñense los aspectos que lo caracterizan. La metodología usada fue la entrevista etnográfica. Como resultado se obtuvo que la influencia del quechua en el castellano del departamento de Nariño no se dio solamente a nivel léxico o sintáctico, sino que alcanzó niveles más profundos.Abstract The article describes a phenomenon of semantic-pragmatic transfer at the modal level from Quechua into the Castilian Spanish of the Andean region of Nariño. The article is organized as follows: first it introduces the concept of evidentiality, next it provides a brief historical description of Quechua and an introduction to its typology, and, finally, it explains how the linguistic contact between Quechua and Spanish gave the Castilian Spanish of the Andean region of Nariño its characteristic aspects. The methodology used was the ethnographic interview. The results obtained show that the influence of Quechua on the Castilian Spanish of the department of Nariño occurred not only at the lexical or syntactic levels, but also at deeper levels.

  13. Análisis geográfico y conservación del zorro andino Lycalopex culpaeus (Mammalia, Canidae en Colombia

    Directory of Open Access Journals (Sweden)

    Elkin A. Noguera-Urbano

    2016-01-01

    Full Text Available RESUMEN El zorro andino Lycalopex culpaeus (Molina, 1782 ha sido incluido en la categoría de amenaza Vulnerable en Colombia, sin embargo, no se han realizado estudios que validen la inclusión de la especie en dicha categoría a nivel nacional. En el presente trabajo se delimitó el área de distribución potencial (DP de la especie en Colombia y se discute su categoría de amenaza. Para ello se usó modelamiento de nicho ecológico en el algoritmo de Máxima Entropía (Maxent. Con procesamiento en Sistemas de Información Geográfico resaltamos las áreas donde la especie se encuentra protegida. Los resultados muestran que el zorro andino se podría encontrar desde los departamentos de Nariño hasta el Huila (8,877 km2, y el 19.6% (1,742 km2 del área de distribución potencial de la especie se encuentra dentro del Sistema Nacional de Áreas Protegidas de Colombia. A pesar, que la especie es considerada Vulnerable en Colombia, se encontró que no cumple con los criterios para su asignación en dicha categoría debido a la ausencia de evidencias tangibles que sustenten una reducción poblacional, disminución del área de ocupación o la calidad del hábitat en la década previa a la asignación de la categoría de amenaza. Teniendo en cuenta los registros verificables e información sobre el área de distribución de la especie en Colombia, se propone una reasignación de la categoría de amenaza nacional a Casi Amenazada (NT.

  14. The Red de Monitoreo de BosquesAndinos: A communication platform for science and policy in the Andean countries

    Science.gov (United States)

    Baez, S.; Cuesta, F. X.; Malizia, A.; Carilla, J.; Bustamante, M.; Yepes, A.

    2013-05-01

    A workshop held in October 2012 in Lima, Peru, brought together more than 40 scientists and policy makers working in Andean forest ecosystems, one of the richer and most threatened ecosystems of the world. Among the various results of the workshop, there is the formation of the network "Red de Bosques Andinos". The goals of the network include to stimulate scientific research in Andean forest ecosystems by promoting collaboration among scientists, and to serve as a platform to facilitate applied research and communication between scientists and policy makers. Current members of the network include scientists of Argentina, Colombia, Ecuador, Germany, Peru, USA, and representatives of Ministries of Environment and the National Climate Change Adaptation Programs of Colombia, Bolivia, Ecuador, and Peru. The network has started to work in two critical documents for the region. The first one is an extended protocol to monitor diversity and carbon in Andean forests. This protocol, partly based on unpublished efforts, has been developed by the Instituto de Ecología Regional, Universidad de Tucuman, Argentina, and has been revised and improved by experts working in the Andes. The document describe methods to document ecological changes that take place over mid- and long periods of time. It focuses on monitoring changes on the diversity and growth of trees, shrubs and lianas, cover of herbaceous species, and carbon content in forests. This extended protocol will be a useful tool for students and researchers interested in conducting long-term ecological research. Moreover, the use of this tool will produce standardized data needed to understand ecological processes that take place at large spatial scales. The document will be freely available at www.condesan.org. The second document consists of an analysis of the dynamics of trees and carbon in the Andean region. The members of the network have contributed with data of more than 70 permanent forest plots located from

  15. A Influência dos Parques Urbanos no Microclima de Goiânia

    OpenAIRE

    Ana Paula Moreira Rodrigues

    2017-01-01

    o crescimento do tecido urbano promove, dentre outras alterações, a substituição do ambiente natural pelo ambiente construído, estas trocas alteram de modo significativo o microclima das cidades. A presente investigação realizou um comparativo dos parques urbanos de Goiânia – GO (Areião, Lago das Rosas, Bosque dos Buritis e Flamboyant) com ambientes externos, no mesmo município, desprovidos de vegetação. Teve como recorte temporal os meses de março, abril e maio de 2013, onde foram realizadas...

  16. Iron stores in regular blood donors in Lagos, Nigeria

    Directory of Open Access Journals (Sweden)

    Adediran A

    2013-06-01

    Full Text Available Adewumi Adediran,1 Ebele I Uche,2 Titilope A Adeyemo,1 Dapus O Damulak,3 Akinsegun A Akinbami,4 Alani S Akanmu1 1Department of Hematology and Blood Transfusion, University of Lagos, Lagos, Nigeria; 2Department of Hematology and Blood Transfusion, Lagos University Teaching Hospital, Lagos, Nigeria; 3Department of Hematology and Blood Transfusion, Jos University Teaching Hospital, Jos, Nigeria; 4Department of Hematology and Blood Transfusion, Lagos State University, Ikeja, Nigeria Background: Apart from challenging the bone marrow to increase its red cell production, thereby producing more blood for the donor, regular blood donation has been shown to have several benefits, one of which is preventing accumulation of body iron which can cause free radical formation in the body. This study was carried out to assess body iron stores in regular blood donors. Methods: A total of 52 regular (study and 30 first-time (control volunteer blood donors were studied prospectively. Twenty milliliters of venous blood was drawn from each subject, 5 mL of which was put into sodium ethylenediamine tetra-acetic acid specimen bottles for a full blood count, including red blood cell indices. The remaining sample was allowed to clot in a plain container, and the serum was then retrieved for serum ferritin, serum iron, and serum transferrin receptor measurement by enzyme-linked immunosorbent assay. Results: Mean hemoglobin and packed cell volume in the study group (13.47 ± 2.36 g/dL and 42.00 ± 7.10, respectively, P = 0.303 were not significantly higher than in the control group (12.98 ± 1.30 g/dL and 39.76 ± 4.41, respectively, P = 0.119. Mean serum ferritin was 102.46 ± 80.26 ng/mL in the control group and 41.46 ± 40.33 ng/mL in the study group (P = 0.001. Mean serum ferritin for women in the study group (28.02 ± 25.00 ng/mL was significantly lower than for women in the control group (56.35 ± 34.03 ng/mL, P = 0.014. Similarly, men in the study group had a lower

  17. Modelos numéricos y teledetección en el lago de Izabal, Guatemala

    OpenAIRE

    Medina Mazariegos, Camilo Ernesto

    2009-01-01

    Los recursos hídricos son un elemento clave pai-a sustentar el desarrollo sostenible de la humanidad, y el conocimiento adecuado dé los procesos que los rigen es la base para tomar decisiones acertadas respecto a su manejo. Esta Tesis Doctoral tiene como objeto de estudio el Lago de Izabal, que es el lago de mayor extensión en Guatemala. A pesar de la importancia económica y social de este cuerpo de agua, la infonnación relacionada con la dinámica ambiental del lago es deficiente. El objet...

  18. Variabilité hydrologique et vulnérabilité des populations du Lago Janauaca (Amazonas, Brésil Variabilidade hidrológica e vulnerabilidade das populações do Lago Janauaca (Amazonas, BrasilHydrological variability and human vulnerability in Lago Janauaca (Amazonas, Brazil

    Directory of Open Access Journals (Sweden)

    Josyane Ronchail

    2011-03-01

    Full Text Available Étroitement liées à la pulsation saisonnière des crues de l’Amazone, les activités des petits paysans et pêcheurs des várzeas sont particulièrement sensibles aux manifestations plus extrêmes de la variabilité hydrologique. Ce travail propose d’appréhender la vulnérabilité de ces communautés riveraines aux crues et étiages extrêmes autour du Lago Janauaca, près de Manaus, dans un contexte climatique d’intensification du cycle hydrologique. Dans un premier temps nous proposons de caractériser la variabilité hydrologique du Rio Solimões et son impact spatial sur le Lago. Si l’extension du phénomène est frappante, les dynamiques anthropiques sur les rives du lac sont elles aussi importantes. Celles-ci s’expliquent plus par l’ouverture de pistes entre le lac et la BR319, que par l’expansion des cultures traditionnelles qui restent modérée. Enfin, une série d’entretiens menés auprès des riverains dévoile une relation complexe entre les différentes activités des populations et les extrêmes hydrologiques. Les sécheresses y apparaissent comme les perturbations majeures, non seulement à cause de leurs impacts sur les cultures, mais surtout en raison des difficultés qu’elles entraînent pour les mobilités locale et régionale.Intimamente relacionado com o pulso de inundação sazonal do rio Amazonas, as atividades dos agricultores e pescadores das várzeas são particularmente sensíveis aos eventos mais extremos da variabilidade hidrológica. Este artigo tem como objetivo analisar a vulnerabilidade das comunidades ribeirinhas às cheias e às estiagens extremas ao redor do Lago Janauaca, próximo de Manaus, em um contexto de intensificação do ciclo hidrológico. Inicialmente, propomos uma caracterização da variabilidade hidrológica do Rio Solimões e do seu impacto espacial sobre o lago. As dinâmicas antrópicas às margens do lago são importantes também. Elas são mais decorrentes pela abertura

  19. Property-use conversion in Lagos metropolis in the context of the ...

    African Journals Online (AJOL)

    regionalizing Lagos into different genres of metropolises can change the capability of the model which attempts to predict use-conversion for the metropolis; including exploring the relevance of the obtained results for enhancing physical development ...

  20. Data points, corresponding to the bathymetric survey of Lago Lucchetti, Puerto Rico, September 2013-May 2014

    Data.gov (United States)

    Department of the Interior — The U.S. Geological Survey conducted a sedimentation survey of Lago Lucchetti, Yauco, Puerto Rico, in 2013–14 in cooperation with the Puerto Rico Aqueduct and Sewer...

  1. Shapefile of the bathymetric contours of Lago Lucchetti, Puerto Rico, September 2013-May 2014

    Data.gov (United States)

    Department of the Interior — The U.S. Geological Survey conducted a sedimentation survey of Lago Lucchetti, Yauco, Puerto Rico, in 2013–14 in cooperation with the Puerto Rico Aqueduct and Sewer...

  2. LBA-ECO LC-07 Bathymetric Survey of Floodplain Lake, Lago Curuai, Para, Brazil: 2004

    Data.gov (United States)

    National Aeronautics and Space Administration — The bathymetry data provided represent a continuous surface of interpolated point measurements of depth values of Lago Curuai, an Amazon River floodplain lake,...

  3. LBA-ECO LC-07 Bathymetric Survey of Floodplain Lake, Lago Curuai, Para, Brazil: 2004

    Data.gov (United States)

    National Aeronautics and Space Administration — ABSTRACT: The bathymetry data provided represent a continuous surface of interpolated point measurements of depth values of Lago Curuai, an Amazon River floodplain...

  4. Individual Attitude toward Recycling of Municipal Solid Waste in Lagos, Nigeria.

    OpenAIRE

    Tunmise A. Otitoju

    2014-01-01

    Attitudes of the waste generators in the community appears to be critical as their points of understanding in waste recycling eventually play a significant role in providing answers to municipal solid waste management problems in Lagos State. Individual involvement has a direct bearing on an effective recycling practice. This study investigates factors influencing individual waste recycling performance and their likelihood to participation in Lagos State. This paper presents the results of th...

  5. Colonoscopy Practice in Lagos, Nigeria: A Report of an Audit

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    C. A. Onyekwere

    2013-01-01

    Full Text Available Background. Colonoscopy effectiveness depends on the quality of the examination. Community-based report of quality of colonoscopy practice in a developing country will help in determining standard and also serve as a stimulus for improvement in service. Aim. To review the quality of colonoscopy practice and document pattern of colonic disease including polyp detection rate in Lagos, Nigeria. Method. A protocol that captured the patients’ demographics, indication, and some quality indices of colonoscopy was developed and sent to all the identified colonoscopy units in Lagos to complete for all procedures performed between January 2011 and June 2012. All data were collated and analyzed. The quality indices studied were compared with guideline standard. Results. Twelve colonoscopy centers were identified but only nine centers responded. The gastroenterologist/endoscopists were physicians (3 and surgeons (5. Six hundred and seven colonoscopy procedures were performed during this period (M : F = 333 : 179 while the sex was not disclosed in 95 subjects. The examination indications were lower GI bleeding (24.2%, altered bowel habits (9.2%, lower abdominal pain (9.1%, screening for CRC (4.3% and unspecified (46.8%. Conscious sedation was generally used while bowel preparation (good in 81.4% was done with low residue diet and stimulant laxatives. Caecal intubation rate was 81.2%. Common endoscopic findings were haemorrhoids (43.2%, polyps/masses (13.4%, diverticulosis (11.1%, and no abnormality (23.4%. Polyp was detected in 6.8% of cases. Conclusion. Colonoscopy utilization is low, and the quality of practice is suboptimal; although limited resources could partly explain this, however it is not clear if the low rate of polyp detection is due to missed lesions or low population incidence.

  6. Rabia transmitida por murciélagos en Brasil

    Directory of Open Access Journals (Sweden)

    Willian Oliveira Fahl

    2015-09-01

    Full Text Available Frente al desafío que la rabia representa para la industria pecuaria y la salud pública en América Latina, el presente artículo tiene como objetivo hacer una revisión de literatura amplia y crítica sobre la epidemiología de la rabia transmitida por murciélagos en Brasil. El tema es abordado inicialmente desde una perspectiva histórica hasta la caracterización molecular de aislamientos del virus, para finalmente contrastar con la situación de otros países de las Américas. La información referente a Brasil es presentada de manera separada debido a la gran abundancia de especies de murciélagos de diversos hábitos alimenticios, implicadas en la transmisión del virus de la rabia y las complejas relaciones entre los ciclos epidemiológicos revelados por estudios de tipificación antigénica y análisis filogenético, lo  cual ha permitido reconocer con más nitidez, la importancia de los quirópteros como reservorios y transmisores de esta enfermedad.  Este nuevo escenario epidemiológico exige reexaminar las medidas de control aplicadas hasta el momento, desde un abordaje multidisciplinar, así como cooperación intersectorial y participación por parte de la comunidad.

  7. The Socio-cultural Causes of Male Victimisation in Domestic Contexts in Lagos, Nigeria: A Qualitative Analysis

    OpenAIRE

    Ayodele, Johnson Oluwole

    2017-01-01

    This paper examines the factors that predispose men to female-perpetrated violence in Lagos, Nigeria. Using snowball sampling, it purposively selected one case study, one key informant and two in-depth interview participants from each of the three Senatorial Districts of Lagos. Data were content analysed. Findings indicated that male victims of domestic violence abound in Lagos; stigmatisation causes male victims’ non-disclosure; and female aggressors sometimes used traditional mechanisms to ...

  8. Cambios institucionales para preservar la cantidad y la calidad del agua en la cuenca del Lago de Tota

    OpenAIRE

    Chaparro Valderrama, Jairo

    2013-01-01

    Diversos estudios realizados durante las últimas décadas en la cuenca del lago de Tota, han identificado, por una parte, un crecimiento de la demanda de agua acompañado de una reducción en su oferta -especialmente durante el verano-, y, por la otra, procesos crecientes, aunque focalizados, de contaminación del agua en los afluentes del lago y en el lago mismo.

  9. Diferenciación étnica y redes de larga distancia entre migrantes andinos: el caso de Sanka y Colcha

    Directory of Open Access Journals (Sweden)

    1991-01-01

    Full Text Available DIFFERENTIATION ETHNIQUE ET RESEAUX DE LONGUE DISTANCE CHEZ LES MIGRANTS ANDINS : LE CAS DE “SANKA” ET “COLCHA”. Les migrants andins ne limitent pas leurs réseaux sociaux d’interaction au milieu urbain. La réorientation spatiale des migrants devient notable au moment de l’aggravation de la crise nationale au Pérou qui affecte avec une particulière dureté la population liménienne. La formation de nouveaux réseaux de longue distance entre migrants est déterminée historiquement par l’espace géographique que couvre l’histoire de leur migration. De tels réseaux d’interaction impliquent un mécanisme spécifique de reproduction sociale des migrants andins et constituent un facteur important de changement social. Los migrantes andinos en Lima no limitan sus redes sociales de interacción al centro urbano. Sobre todo con la agudización de la crisis nacional en el Perú, que afecta con particular dureza a la población limeña, comienza una notable reorientación espacial de los migrantes. La formación de nuevas redes de larga distancia entre migrantes es históricamente determinada por el espacio geográfico que cubre su historia migracional. Tales redes de interacción significan un mecanismo específico de reproducción social de migrantes andinos y son factor importante del cambio social. ETHNIC DIFFERENTIATION AND LONG-DISTANCE-NETWORKS BETWEEN ANDEAN MIGRANTS: THE CASE OF “SANKA” AND “COLCHA”. The andean migrants in Lima do not limit their social networks of interaction on the urban center. Together with the aggravation of the national crisis in Peru, which affects the urban population of Lima particularly hard, is emerging a remarkable spatial reorientation of those migrants. The formation of long-distance-networks between migrants is historically determined by the geographical space, which covers their migration history. Such networks of interaction suggest a specific form of social reproduction of the andean migrants

  10. Su majestad quiere saber. Información oficial y reformismo borbónico: el mundo andino bajo la mirada de la ilustración

    Directory of Open Access Journals (Sweden)

    Juan Marchena Fernández

    2005-11-01

    Full Text Available Estudio dedicado a analizar el proceso de recolección de información burocrática que la Corona española requirió de sus posesiones americanas, durante las últimas décadas del siglo XVIII. La monarquía española demandó información sobre una variedad de aspectos que incluían producción, población, rentas, impuestos, doctrinas, costumbres, etc. El estudio escudriña, de manera específica, las vicisitudes que marcaron el cumplimiento de esta disposición real en el espacio andino. Se analizan las mediaciones sociales, políticas y culturales locales que estuvieron presentes en el proceso de recolección de la información. Por un lado, se subraya la distancia existente entre las premisas reformistas ilustradas que animaban los intereses de la monarquía española, y por otro, las maneras cómo reaccionaron la burocracia colonial y las sociedades andinas locales.

  11. La transformación del Estado en América Latina: una perspectiva económica desde los países andinos

    Directory of Open Access Journals (Sweden)

    Edgard Moncayo Jiménez

    2006-01-01

    Full Text Available A juicio de muchos analistas, el Estadonación —piedra angular de la organización política del mundo desde la suscripción del Tratado de Wesfalia, en 1968— está experimentando una profunda crisis. En esta visión, el poder efectivo de dicha entidad política se está desbordando en tres direcciones: hacia arriba, por la globalización y la supranacionalización; horizontalmente, por el desmonte del Estado de bienestar, la privatización y la desregulación; y hacia abajo, por la descentralización y la devolución de autonomías a las polis regionales y locales. La acción conjunta de estas tendencias estaría determinando el vaciamiento (hollowing out del Estado-nación, en la medida en que muchas de sus competencias tradicionales se están transfiriendo hacia arriba, a las instituciones internacionales y supranacionales; hacia los lados, al mercado, las empresas privadas y las transnacionales; y hacia abajo, a las entidades de orden subnacional. En este artículo analizaremos el impacto de tales tendencias en los países andinos

  12. Tilapia africana en el Lago de Nicaragua: ecosistema en transición.

    Directory of Open Access Journals (Sweden)

    Jeffrey K. McCrary

    1998-10-01

    Full Text Available Los grandes lagos de Nicaragua, son comparables con el sistema de grandes lagos africanos. Contienen una gran diversidad de peces, incluyendo varios peces endémicos de la familia Cichlidae. La captura de peces en el Lago de Cocibolca, estandarizada en 100 metros de red, promedió 4.34 kilogramos en el área de Ometepe, en donde la tilapia constituyó el 1.5 % del peso total de la captura. Este promedio fue de 0.80 kilogramos en la costa septentrional, donde la tilapia constituyó 54% del peso total de la captura. Un estudio ruso efectuado en 1983 y desarrollado en todo el Lago, demostró que el promedio era de 4.66 kilogramos. Los autores del presente artículo recomiendan que en el Lago Cocibolca se implemente un plan de manejo adecuado para controlar la población de tilapia y rescatar un ecosistema en peligro de colapso

  13. Identidades ambientales, un caso comparativo entre el Trapecio amazónico y el Archipiélago de San Andrés

    Directory of Open Access Journals (Sweden)

    Pablo De La Cruz

    2014-01-01

    Full Text Available A partir de la definición de identidad ambiental, el artículo compara los procesos de transformación identitaria que han tenido lugar en el Trapecio amazónico colombiano y en el Archipiélago de San Andrés, por cuanto son dos casos de redefinición histórica de la etnicidad con referencia al medio geográfico, al encuentro con la colombianidad, a la agudización del discurso y a las tensiones que los capitales y los agentes institucionales generan en torno a lo tradicional. Se analiza el creciente turismo, la influencia de las agencias de cooperación y sus efectos en el desplazamiento de lo sagrado hacia una “cultura teatral”.

  14. Access to and Use of Reproductive Health Information among In-School Adolescent Girls in Lagos State, Nigeria

    Science.gov (United States)

    Nwalo, K. I. N.; Anasi, Stella N. I.

    2012-01-01

    Objective: This study investigated access to and use of reproductive health information among in-school adolescent girls in Lagos State, Nigeria. Design: Descriptive survey research design was adopted for the study. Setting: The study sample consisted of 1,800 girls randomly selected from 18 public senior secondary schools in Lagos State. Method:…

  15. The Lagos coast : Investigation of the long-term morphological impact of the Eko Atlantic City project

    NARCIS (Netherlands)

    van Bentum, K.M.; Hoyng, C.W.; van Ledden, M.; Luijendijk, A.P.; Stive, M.J.F.

    2012-01-01

    The Lagos coast has been suffering high rates of erosion since the construction of three harbour moles, i.e. the West Mole, East Mole and the Training Mole, at the tidal inlet connecting the Lagos Lagoon to the South Atlantic Ocean. To provide for a permanent erosion mitigation measure and to create

  16. Spinal neural tube defects in Lagos University Teaching Hospital, Nigeria.

    Science.gov (United States)

    Bankole, O B; Arigbabu, S O; Kanu, O O

    2012-01-01

    The incidence of neural tube defects is known to vary among regions. Very little has been reported about the incidence in Sub-Saharan Africa except for the general impression that the prevalent rates are low. To determine the profile of patients presenting with neural tube defects in Lagos, Nigeria We studied all patients with congenital midline back swellings presenting to one of two neurosurgical services in the state over a 5-year period to establish the incidence of spina bifida and develop demographic data. Data collected included the age at presentation, maternal age, education and parity, presence of co-existing anomalies and the social status of the parents. One hundred and eight patients with congenital midline swellings of the back were studied. Meningomyelocele accounted for 96% of the cases seen. Half the patients presented within the first two weeks of life and although fifty percent of mothers had ultrasound scans done during pregnancy none of the patients were diagnosed prenatally. Seventy-three percent of mothers of affected children were from a low socio-economic class. The commonest co-existing congenital anomaly was lower limb deformity (Talipes equino-varus). Spina bifida is the commonest indication for neurosurgical clinic referral with the exception of trauma in our environment. The prevalence is higher among women in the lower socio-economic groups. Improved perinatal care is required to ensure that children with such birth defects get prompt medical attention and thereby prevent worsening of an already complex problem.

  17. Castelvecchio and Castiglione del Lago: Two new Italian iron meteorites

    Science.gov (United States)

    Moggi Cecchi, V.; Pratesi, G.; Caporali, S.; Herd, C. D. K.; Chen, G.

    2017-08-01

    Until 2016 only 38 Italian meteorites have been classified and published on the Meteoritical Bulletin Database. Among these, only 4 were irons. We here report the results of the analyses performed on two iron meteorites recovered in Italy. The first one, Castiglione del Lago, weighing 667g, was recovered in 1970. The textural features observed by means of both optical microscope and SEM, as well as SEM-EDX and ICP-MS analyses, allowed to classify it as IAB-MG iron. The second one, named Castelvecchio, has been recovered at Lignana, near Pontito, in August 2015. In the same locality a fireball was witnessed on October 23, 1986, by Mario Goiorani, a meteorite collector. The main mass, weighing 49.5g, was recovered inside a hollow. A chip, observed with both optical metallographic microscope and SEM, displayed no kamacite lamellae at the centimetric scale, suggesting a classification as IIAB iron. This classification was confirmed by ICP-MS analyses. Both meteorites have been approved by the Meteoritical Society in 2016 and published in the on-line Meteoritical Bulletin Database (https://www.lpi.usra.edu/meteor).

  18. Examination of Estate Marketing Practices in Ikeja, Lagos, Nigeria

    Directory of Open Access Journals (Sweden)

    Joseph Oyewale Oyedeji

    2017-09-01

    Full Text Available Estate marketing is an aspect of the profession of Estate Surveying and Valuation in Nigeria. Previous studies on estate marketing identified that there are challenges affecting estate marketing and the resultant effect on these challenges affects the credibility of the profession of Estate Surveying and Valuation in Nigeria. This necessitates the need to examine the practice of estate marketing in Nigeria. This study examined estate marketing practice among estate surveyors and valuers in Ikeja, Lagos Nigeria. The sample size for the study is the 64 registered Estate Surveying and Valuation firms in the study area. Data gathered were analyzed using descriptive statistics and 5-point likert ordinal scale. Findings from the study revealed that the use of brochure or bulletin is the most common estate marketing method in the study area. Also, it was revealed from the study that the use of press is the most cost effective method of estate marketing in the study area. The study identified the various challenges of estate marketing. However, collection of double professional fees is the most prevalent challenge of estate marketing in the study area. Finally, aggressive marketing which leads to unethical practices is the most prevalent mitigating measures adopted by Estate Surveyors and Valuers in the study area. Recommendations were made on how to review the ethical regulations guiding the practice of Estate Surveying and Valuation which will consequently improve marketing in the study area.

  19. Congenital club foot in a teaching hospital in Lagos, Nigeria.

    Science.gov (United States)

    Adewole, O A; Giwa, S O; Kayode, M O; Shoga, M O; Balogun, R A

    2009-06-01

    Congenital club foot has been sparsely reported in literature in Nigeria, although it has been reported as the commonest congenital musculoskeletal abnormality. This study enumerates the point prevalence of this disease in a university teaching hospital in Lagos. Better understanding of the epidemiology in our community should improve awareness, and influence management. Between June 2005 and July 2006, 72 consecutive patients with congenital club feet were seen in the orthopaedic clinic of our Hospital. Demographic data, birth weight, family history, birth facility, maternal age and associated congenital anomalies were recorded and analysed using Statistical Programme for Social Sciences (SPSS) version 15. A total of 72 patients were seen, 28 of whom had bilateral club feet resulting in a total of 100 feet. There were 38 males and 34 females. Only 29% presented in the first month of life and 28% in the second month. Maternal ages ranged between 19 and 38 years and no family history of congenital club foot was given,. Babies delivered outside the orthodox medical system (churches, traditional healers, home etc) constituted 28%. The commonest associated congenital anomalies were tibia hemimelia, hydrocephalus, inguinal hernia and umbilical hernia. A default rate of 28% was observed during treatment. Congenital club foot may not be uncommon in Nigeria. Late presentation and high default rate before correction of the deformity were observed. Establishment of special club foot clinics should reduce the default rate. Training of healthcare workers in maternity units as well as Public awareness should encourage early referral to specialists.

  20. La dama fantasma y el monstruo del lago: Narración, ciencia y creencias en actuaciones discursivas

    Directory of Open Access Journals (Sweden)

    María Inés Palleiro

    2011-12-01

    Full Text Available En este artículo, examino la dinámica entre ficción e historia, ciencia y creencia, en versiones de dos matrices folklóricas de distintas latitudes: la dama fantasma en sus distintos nombres —desde Rufina Cambacères a Frederike von Grotes y Matilde de Canossa— y el monstruo del lago, conocido como el Nahuelito, en una versión local del monstruo de Loch Ness. Trabajo con relatos registrados en contextos diversos y en soportes diferentes, que incluyen los circuitos mediáticos. Examino en ellos la articulación retórica del mensaje, cuyo contenido semántico se relaciona con creencias colectivas, entendidas como enunciados cuyo valor de verdad depende de un acuerdo intersubjetivo. Analizo la dinámica entre el saber experto de las ciencias y la narrativa de creencias, que intenta dar una respuesta totalizadora a problemas tales como la finitud de la vida o el temor a lo desconocido, para los cuales la ciencia canónica no brinda una respuesta satisfactoria.

  1. The Status of Malaria among Pregnant Women: A Study in Lagos ...

    African Journals Online (AJOL)

    Le statut du paludisme chez les femmes enceintes: une étude effectuée à Lagos, Nigéria. Nous avons mené une étude sur le statut du paludisme chez 800 femmes enceintes dans l'Etat de Lagos qui ont été selectionnées au hasard. Dés échantillons du sang ont été prélevés à travers la figure de droigt et ont été analysés ...

  2. Tamaño relativo del cerebro en murciélagos cubanos

    OpenAIRE

    Mancina, Carlos A.

    2004-01-01

    Se estudia el tamaño relativo del cerebro en 22 especies de murciélagos cubanos, incluidos en seis familias: Phyllostomidae (siete), Mormoopidae (cuatro), Natalidae (una), Noctilionidae (cuatro), Vespertilionidae (cuatro) y Molossidae (cinco). Se incluyeron todos los géneros (19) presentes en el Archipiélago cubano con la excepción de Anthrozous. El exponente alométrico que describe la relación entre el volumen endocraneal y la masa corporal es considerablemente más alto que el hallado en est...

  3. Tratamiento de los defectos del cartílago articular en la rodilla

    OpenAIRE

    Reverté Vinaixa, María Mercedes

    2015-01-01

    Las lesiones condrales y osteocondrales en la rodilla aparecen en gente joven, activa y con gran expectativa de vida. Estás suponen un gran problema, puesto que este una vez destruido, ya no se repara. Debido a la escasa capacidad intrínseca de curación del cartílago, sus lesiones tienden a causar morbilidad en forma de dolor articular y disfunción. Existen diferentes técnicas quirúrgicas que mejoran la sintomatología y la historia natural de las lesiones condrales. Las lesiones del cartílago...

  4. Lagos bat virus transmission in an Eidolon helvum bat colony, Ghana.

    Science.gov (United States)

    Freuling, Conrad M; Binger, Tabea; Beer, Martin; Adu-Sarkodie, Yaw; Schatz, Juliane; Fischer, Melina; Hanke, Dennis; Hoffmann, Bernd; Höper, Dirk; Mettenleiter, Thomas C; Oppong, Samual K; Drosten, Christian; Müller, Thomas

    2015-12-02

    A brain sample of a straw-coloured fruit bat (Eidolon helvum) from Ghana without evident signs of disease tested positive by generic Lyssavirus RT-PCR and direct antigen staining. Sequence analysis confirmed the presence of a Lagos bat virus belonging to phylogenetic lineage A. Virus neutralization tests using the isolate with sera from the same group of bats yielded neutralizing antibodies in 74% of 567 animals. No cross-neutralization was observed against a different Lagos bat virus (lineage B). Copyright © 2015 Elsevier B.V. All rights reserved.

  5. Indicios indirectos de la presencia del oso andino (Tremarctos ornatus Cuvier, 1825 en el noroeste de Argentina Indirect evidence on the presence of the Andean bear (Tremarctos ornatus Cuvier, 1825 in northwestern Argentina

    Directory of Open Access Journals (Sweden)

    J. Fernando Del Moral

    2009-06-01

    Full Text Available La presencia de osos andinos (Tremarctos ornatus en Argentina ha sido muy discutida debido a la ausencia de evidencia confirmativa. Muchos expertos en el oso dudan actualmente de su presencia en el país. No obstante, la Selva Tucumano-Boliviana o de Yungas es un ecosistema típico donde se puede encontrar esta especie; particularmente en el área estudiada, el hábitat parece ser de alta calidad para los osos. Entre los años 2001 y 2006, se recopilaron 23 casos de evidencia sobre la presencia de osos andinos en las provincias de Salta y Jujuy. Se registraron huellas, restos alimenticios y heces. Adicionalmente, se entrevistó a nativos, agricultores y cazadores para colectar otros datos sobre la especie. Se concluye que las selvas de Yungas del extremo noroeste de Argentina, deben ser consideradas un área con alta probabilidad de mantener una población residente de osos andinos. Aunque posiblemente esta sea una población aislada y pequeña, la presencia permanente de osos andinos en el noroeste de Argentina no debería ser puesta en duda.The presence of Andean bears (Tremarctos ornatus in Argentina has been disputed due to the absence of confirming evidence. Many Andean bear experts currently doubt on their presence in this country. Nevertheless, the Tucuman-Bolivian Forest or Yungas is a typical ecosystem where this species can be found, particularly in the studied area, in which the habitat appears to be of high quality for bears. Between 2001 and 2006, 23 cases of evidence on the presence of Andean bears in the provinces of Salta and Jujuy were recorded. Footprints, food remains and scats were found. In addition, natives, farmers, and hunters where interviewed to collect new data of this species. The conclusion is that the Yungas Forest of northwestern Argentina must be considered an area with high probability of maintaining a resident population of Andean bears. Although this is probably a small and perhaps isolated population, the

  6. Fixed drug eruption at a dermatology clinic in Lagos, Nigeria

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    Olusola Olabisi Ayanlowo

    2015-01-01

    Full Text Available Background: Fixed drug eruption (FDE is common cutaneous drug eruption characterized by the development of one or more annular, oval, erythematous, and hyperpigmented patches as a result of systemic exposure to a drug. Drugs causing FDE vary with prevailing diseases and prescription pattern in different parts of the world. This study is aimed at reviewing cases of FDE seen at the dermatology outpatient clinic of Lagos University Teaching Hospital (LUTH over a 9-year period, highlighting the spectrum of drugs implicated and the clinical characteristics. Materials and Methods: Data were obtained from the clinic records and patients' case notes. These included the demographic details, duration of presentation, drugs implicated, and clinical characteristics. Results: FDE was diagnosed in 1.8% (295/16,160 of patients seen. There was a slight female preponderance. Antimalarials were the commonest group of medications implicated (51.0% followed by antibiotics (27.9%; analgesics (10.2%, herbal toothpaste (6.1%, and oral hypoglycemic agents (4.1%. Sulfonamides were the commonest group of drugs found in 78 patients (53.1% predominantly as sulfadoxine/pyrimethamine antimalarials and trimethoprim/sulfamethoxazole antibiotics (co-trimoxazole. Conclusion: Concerted efforts are needed to discourage over-the-counter sales and purchase of nonprescription sulfonamide-based medications. A change in prescription pattern from sulfonamides to other classes of antimalarials and antibiotics is desirable and/or recommended. Patients should inform their caregivers at any point of care about their reaction to drugs. It is advised that they have a list of common implicating drugs and they wear a medic alert or carry an ID card bearing this information.

  7. Self-medication for infants with colic in Lagos, Nigeria.

    Science.gov (United States)

    Oshikoya, Kazeem A; Senbanjo, Idowu O; Njokanma, Olisamedua F

    2009-02-04

    Infantile colic is a self-limiting condition that is distributed worldwide. It is often misdiagnosed as an organic disease for which an infant is admitted to the hospital. Many studies have described the aetiopathogenesis, pharmacologic and non-pharmacologic management of colic but none has evaluated self-medication for infants with colic. The aim of this study was therefore to determine the knowledge of Nigerian mothers about colic, their home-based management, extent of self-medication for the infants with colic and the types of medicines involved. It is a prospective study conducted at the vaccination clinics of 20 primary health care centres, each from different Local Government Areas in Lagos, Nigeria. Eight hundred mothers that brought their infants for vaccination between April and September, 2006 were interviewed with open-and close-ended questionnaire. Six hundred and eighty three (85.4%) mothers claimed they had a good knowledge of colic. Incessant and excessive cry was the main clinical feature of colic identified by 430(62.9%) mothers. Three hundred and seventy eight (67.7%) infants were treated by self-medication, 157 (28.1%) sought medical intervention and 17 (3.1%) were treated at a traditional birth attendant home. Herbal medicines constituted 51.8% of the self-medicated medicines, of which 48 (26.2%) were "Ororo Ogiri". Nospamin (49.5%) and Gripe water (43.0%) were the two frequently prescribed and self-medicated medicines for infants with colic. Nigerian mothers are deficient in their knowledge of colic. Self-medication was the most frequently used home-based intervention. Health education would appear necessary to improve parental management of this self-limiting condition.

  8. Self-medication for infants with colic in Lagos, Nigeria

    Directory of Open Access Journals (Sweden)

    Oshikoya Kazeem A

    2009-02-01

    Full Text Available Abstract Background Infantile colic is a self-limiting condition that is distributed worldwide. It is often misdiagnosed as an organic disease for which an infant is admitted to the hospital. Many studies have described the aetiopathogenesis, pharmacologic and non-pharmacologic management of colic but none has evaluated self-medication for infants with colic. The aim of this study was therefore to determine the knowledge of Nigerian mothers about colic, their home-based management, extent of self-medication for the infants with colic and the types of medicines involved. Methods It is a prospective study conducted at the vaccination clinics of 20 primary health care centres, each from different Local Government Areas in Lagos, Nigeria. Eight hundred mothers that brought their infants for vaccination between April and September, 2006 were interviewed with open-and close-ended questionnaire. Results Six hundred and eighty three (85.4% mothers claimed they had a good knowledge of colic. Incessant and excessive cry was the main clinical feature of colic identified by 430(62.9% mothers. Three hundred and seventy eight (67.7% infants were treated by self-medication, 157 (28.1% sought medical intervention and 17 (3.1% were treated at a traditional birth attendant home. Herbal medicines constituted 51.8% of the self-medicated medicines, of which 48 (26.2% were "Ororo Ogiri". Nospamin® (49.5% and Gripe water® (43.0% were the two frequently prescribed and self-medicated medicines for infants with colic. Conclusion Nigerian mothers are deficient in their knowledge of colic. Self-medication was the most frequently used home-based intervention. Health education would appear necessary to improve parental management of this self-limiting condition.

  9. Herbal medicine use among urban residents in Lagos, Nigeria

    Science.gov (United States)

    2011-01-01

    Background Over three-quarter of the world's population is using herbal medicines with an increasing trend globally. Herbal medicines may be beneficial but are not completely harmless. This study aimed to assess the extent of use and the general knowledge of the benefits and safety of herbal medicines among urban residents in Lagos, Nigeria. Methods The study involved 388 participants recruited by cluster and random sampling techniques. Participants were interviewed with a structured open- and close-ended questionnaire. The information obtained comprises the demography and types of herbal medicines used by the respondents; indications for their use; the sources, benefits and adverse effects of the herbal medicines they used. Results A total of 12 herbal medicines (crude or refined) were used by the respondents, either alone or in combination with other herbal medicines. Herbal medicines were reportedly used by 259 (66.8%) respondents. 'Agbo jedi-jedi' (35%) was the most frequently used herbal medicine preparation, followed by 'agbo-iba' (27.5%) and Oroki herbal mixture® (9%). Family and friends had a marked influence on 78.4% of the respondents who used herbal medicine preparations. Herbal medicines were considered safe by half of the respondents despite 20.8% of those who experienced mild to moderate adverse effects. Conclusions Herbal medicine is popular among the respondents but they appear to be ignorant of its potential toxicities. It may be necessary to evaluate the safety, efficacy and quality of herbal medicines and their products through randomised clinical trial studies. Public enlightenment programme about safe use of herbal medicines may be necessary as a means of minimizing the potential adverse effects. PMID:22117933

  10. Evaluación ambiental del proceso de urbanización de las cuencas del piedemonte andino de Santiago de Chile

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    Hugo Romero

    2005-12-01

    Full Text Available Las cuencas son complejos sistemas ambientales en que se desarrollan procesos geomorfológicos, hidrológicos, climáticos y ecológicos, que son impactados por la urbanización. En este trabajo se estudian seis cuencas del piedemonte andino de la ciudad de Santiago que se encuentran en diferentes fases del proceso de urbanización, variando entre Macul-San Ramón, en donde casi el 40% de su superficie ha sido incorporada a la ciudad, y Pirque, que mantiene aún sus características agrícolas y rurales. Empleando Sistemas de Información Geográfica, se analiza el impacto de la urbanización sobre indicadores ambientales, tales como productividad vegetal, biomasa, humedad en el suelo y temperaturas superficiales de los territorios ocupados por las cuencas. Las Áreas Totales de Impermeabilización, los Coeficientes de Escorrentía y las Áreas Sensitivas Ambientales, permiten estimar el estado de las cuencas y su contribución a la salud ambiental de la ciudad de SantiagoWatersheds are complex environmental systems, where geomorphologic, hydrologic, climatic and ecological processes take place, and which are severely impacted by urbanisation. In this paper, six Santiago Andean piedmont watersheds have been researched, according with the degree of urbanisation that they reach, which varies between Macul-San Ramón, where about 40% of their land covers has been already urbanised, until Pirque, where agricultural and rural features are still dominants. Using geographical information systems, the impact of urbanization on several ecological indicators, such as vegetative productivity, biomass, soil moisture and surface temperature are analysed. Total Imperviousness Areas, Runoff Coefficients and Environmentally Sensitive Areas allow the estimation of the state of the watersheds ant their contribution to the environmental health of Santiago city

  11. La televisión social en los países andinos. Análisis de los medios sociales en informativos y magazines

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    Abel Suing

    2015-12-01

    Full Text Available Los países andinos transitan hacia la televisión digital al mismo tiempo en que se consolidan los medios sociales que otorgan a la audiencia la capacidad de interactuar en tiempo real, ello deriva en interrogantes como ¿existe integración de los medios sociales en la televisión?, ¿la audiencia participa en la definición de la televisión digital? y ¿estamos frente a la televisión social? La investigación pretende responder a las preguntas señaladas mediante el estudio de los programas de noticias y magazines de las estaciones de televisión líderes del área andina, en razón de que sus contenidos se emiten en tiempo real cuando se generaría el mayor interés de la audiencia. La metodología empleada es cuantitativa y cualitativa a partir del análisis de cuentas en Facebook y Twitter de las estaciones. Las hipótesis son que la televisión social gana aceptación en los países del área andina y que los canales de televisión no explotan los medios sociales. Se concluye que las estaciones privadas muestran más actividad que las públicas, que existe diferencia entre los informativos y el entretenimiento en seguidores y actividad en la red y que estamos en el inicio de la televisión social pero demanda más esfuerzos para integrar pantallas y medios sociales.

  12. Géneros y formatos para la televisión digital. Análisis en los países andinos

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    Abel Suing

    2016-05-01

    Full Text Available El propósito de la investigación es analizar los formatos de televisión vigentes en la transición hacia la televisión digital terrestre en los países andinos e identificar alternativas para la televisión local. La investigación se justifica en razón del apagón analógico entre el 2018 y 2020. La metodología es cualitativa y cuantitativa; los instrumentos son análisis de contenidos y entrevistas semiestructuradas. Los resultados permiten concluir que los contenidos de producción nacional están vinculados con la actualidad. Los elementos que influyen en la creación de contenidos están relacionados con factores de identidad, recursos económicos, talento humano y narrativas. La hibridación de formatos que promuevan la cultura es una opción para las estaciones locales. The purpose of the research is to analyze the current television formats in the transition to digital terrestrial television in the Andean countries, and to identify alternatives for the local television. The research is justified in view of the analog blackout that will occur between 2018 and 2020. The methodology is both qualitative and quantitative; the instruments are content analyses and semi-structured interviews. The results allow concluding that the local production contents are linked to current events. The elements that influence the creation of contents are related to factors of identity, economic resources, human talent and narratives. The hybridization of formats promoting culture is an option for the local stations.

  13. Mariátegui entre dois mundos: Visões do comunitarismo indígena andino

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    Cristhian Teófilo da Silva

    2014-12-01

    Full Text Available Resumo  Este artigo visa demonstrar que a presença da herança andina no projeto de socialismo “indo-americano” de Mariátegui gerou uma tensão epistemológica original e crítica do pensamento social marxista na América Latina. A partir desta releitura da perspectiva mariateguiana apoiada em duas vertentes, indigenista peruana e marxista europeia, o presente artigo afirma a importância dos estudos sobre o indigenismo para a compreensão dos limites do socialismo de orientação marxista no Peru. O artigo será concluído ressaltando a importância do socialismo indo-americano de Mariátegui para a “descoberta” da constituição híbrida do modo de produção peruano.  Palavras-chave  Indigenismo; marxismo; Peru; José Carlos Mariátegui  --- Resumen  Este artículo tiene como objetivo demostrar que la presencia de la herencia andina en el diseño del socialismo "indoamericano" de Mariátegui ha generado una crítica epistemológica original del pensamiento social marxista en América Latina. De este recuento la perspectiva de Mariátegui apoyada en dos frentes, indigenista peruana y marxista europea, este artículo defiende la importancia de los estudios sobre el indigenismo para la comprensión de los límites del socialismo marxista en el Perú. El artículo concluirá destacando la importancia del socialismo indo-americano de Mariátegui en el "descubrimiento" de la constitución híbrida del modo de producción peruana.  Palabras clave  Indigenismo; marxismo; Perú; José Carlos Mariátegui --- Abstract This article aims to demonstrate that the presence of the Andean heritage in Mariátegui's "Indo-American" socialist project generated a new and critical epistemological tension of the Marxist social thinking in Latin America. From this mariateguian retelling, which is established in two ways, Peruvian indigenous and European Marxist, this article maintains the importance of studies on the indigenous movement to understand

  14. Quaternary lacustrine braid deltas on Lake General Carrera in southern Chile Deltas entrelazados lacustres del Cuaternario en el lago General Carrera, sur de Chile

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    C. Mike Bell

    2009-01-01

    Full Text Available A series of Quaternary lacustrine braid deltas on the shores of Lake General Carrera in southern Chile formed as a result of falls in lake level. Each delta comprises two components, the delta fan and the beach embayment, each in turn comprising an onshore subaerial and an offshore subaqueous element. The delta fans have a classic Gilbert form with a braided delta top and a steeply inclined delta front. Adjacent to the fans are concave beach embayments that formed parallel with the deltas as they prograded into the lake. The delta sediments consist predominantly of matrix- and clast-supported gravéis to a total composite thickness exceeding 400 m. The depositional environments are dominated by ephemeral river flooding and by storm-driven waves. Beach sediment is sorted, rounded, winnowed and transported alongshore by waves to fill the beach embayment with ridges of very well sorted and well-rounded gravel. A gently-dipping shoreface platform occurs up to 100 m offshore between the beach and the brink point. From the brink point, in water depth of about 8 m, sediment cascades down the steep delta front slope to form long foresets extending to the lake floor. The sedimentary successions therefore wedge in the opposite direction from those of tectonically controlled basin margins where fan growth keeps pace with basin subsidence.Una serie de deltas entrelazados lacustres, pertenecientes al Cuaternario, ubicados en las costas del lago General Carrera, en el sur de Chile, se formaron como resultado de caídas en el nivel del lago. Cada delta consta de dos componentes: el abanico deltaico y la zona de embahiamiento. Cada uno de ellos tiene, a su vez, un elemento subaéreo costero y un elemento subacuático. Los abanicos deltaicos tienen una forma Gilbert clásica con una parte superior de ríos entrelazados y un frente deltaico empinado. Adyacente a los abanicos aluviales existen bahías cóncavas de playa que se formaron de manera paralela a los

  15. The depositional records of two coastal lakes in south-central Chile (Lago Lanalhue and Lago Lleu Lleu, 38°S): Active forearc tectonics and climate variability

    Science.gov (United States)

    Echtler, H. P.; Stefer, S.; Moernaut, J.; Melnick, D.; Arz, H. W.; Lamy, F.; Haug, G. H.

    2008-12-01

    On millennial time scales, the southern Chilean active margin is not only characterized by active tectonics and subduction-related coastal deformation, but also influenced by pronounced variations in the prevailing climate conditions. Here we focus on the depositional records of two coastal lakes in the southern part of the Arauco Peninsula (38°S, Lago Lanalhue and Lago Lleu Lleu), an area very sensitive to changes in both climate and tectonics. For the present study, we used a multi-proxy approach including seismic reflection surveys, sedimentological, mineralogical, and geochemical analyses, supported by radiocarbon dating. Seismic reflection analyses reveal that Lago Lanalhue and Lago Lleu Lleu developed within former river valleys that once drained into the Pacific Ocean. During the early Holocene, the ancient rivers were dammed by rising sills due to inverse faulting and tectonic uplift, turning first into marginal-marine lagoonal systems and subsequently evolving into lakes. On the basis of sedimentological analyses and radiocarbon dating, the different stages of the lakes development have been reconstructed in consideration of the regional tectonic and climatic history. The comparison of the transitions between different stratigraphic units with contemporaneous variations in the global sea level, allowed the calculation of Holocene uplift rates. These are about twenty times higher for the upraised sills than for the lakes themselves. Therefor, we interpret the sills to be the surface expression of a blind thrust associated with a prominent inverse fault (Morguilla Fault) controlling uplift and folding of the Arauco Peninsula. Geochemical data from the lacustrine part of the sedimentary sequences reveal a continuous record of the middle to late Holocene regional climate history. The results indicate more arid conditions during the middle Holocene and more humid conditions during the late Holocene. An additional increase in climate variability is recorded

  16. Work-Life Balance among academic staff of the University of Lagos ...

    African Journals Online (AJOL)

    Work-life balance is associated with the maintenance of stability in both one's professional and personal life. It is key to the welfare and, subsequently, job satisfaction and productivity of employees. It is against this understanding that this study surveyed the way academic staff of the University of Lagos perceive and pursue ...

  17. Assessment of Day Caring Methods among Civil Servant Mothers of Reproductive Age in Lagos State Nigeria

    Science.gov (United States)

    Akinnubi, Caroline Funmbi

    2016-01-01

    This study examined the day caring methods among the civil servants of reproductive age with children between three months to four years in Lagos State Nigeria. The research design employed for this study was a descriptive research design. A total number of 212 teachers and 128 ministry workers making a total of 340 reproductive age mothers were…

  18. Influence of Early Instruction on Reading Skills of Students in Lagos ...

    African Journals Online (AJOL)

    This study examined the influence of early instruction on the reading skills of students in primary schools. The sample for the study consist of 120 pupils, 57 males and 63 females randomly selected from six private and public primary schools in Lagos State. The instrument for the study was the respondents' Text Books on ...

  19. A Case Study in Distance Learning Systems: The University of Lagos Correspondence and Open Studies Unit.

    Science.gov (United States)

    Harry, Keith

    A case study of the correspondence and open studies unit of the University of Lagos, an Open University school, is presented. Areas of discussion include characteristics of the country, the educational system in Nigeria, and the correspondence and open studies unit. Specific topics include: the physical setting of Nigeria; the population; the…

  20. Coastal Dump Sites in the Lagos lagoon and toxicity of their ...

    African Journals Online (AJOL)

    The findings from this study indicate widespread and unregulated practice of coastal solid waste dumping with potential effects on water quality and biota. The need for improved waste ... the City of Lagos was discussed. Keywords: Aquatic Pollution; Waste Management; Environmental Policy; Solid Waste; Waste Recycling ...

  1. An Examination of Tenure Security for Urban Crop Farming in Lagos ...

    African Journals Online (AJOL)

    The study examined issues surrounding tenure security of land for urban crop farming and identified constraints that must be dealt with in order to facilitate land accessibility and productivity of urban crop farmers in the Lagos metropolis. 475 respondents of seven communities were selected through simple random sampling ...

  2. Transnational business and family strategies among Chinese/Nigerian couples in Guangzhou and Lagos

    NARCIS (Netherlands)

    Lan, S.

    2015-01-01

    Based on ethnographic fieldwork in Guangzhou and Lagos, this paper explores transnational trade activities and family strategies among Chinese/Nigerian interracial couples in the context of growing China/Africa trade relations and the recent tightening of China's immigration control. It examines how

  3. Detection of Influenza A Virus in Pigs in Lagos, Nigeria | Anjorin ...

    African Journals Online (AJOL)

    This study detected and subtyped strains of influenza virus from pigs in Lagos, South-western Nigeria. A total of 116 (58 nasal and 58 throat) samples from healthy pigs were analysed from two different sites in Ayedoto farm at Ojo Local Government between June and September, 2010 using reverse transcription ...

  4. Maternal and perinatal mortality in ward a, ikosi-isheri lcda in lagos ...

    African Journals Online (AJOL)

    Background: The problem of authentic statistics on maternal and peri-natal mortality has persisted in Nigeria probably because of inadequate involvement of community members in data management. Objective: The objective of this study was to improve the accuracy of information on pregnancy outcome in a ward in Lagos ...

  5. Selenium deficiency and pregnancy outcome in pregnant women with HIV in Lagos, Nigeria.

    Science.gov (United States)

    Okunade, Kehinde S; Olowoselu, Olusola F; Osanyin, Gbemisola E; John-Olabode, Sarah; Akanmu, Sulaimon A; Anorlu, Rose I

    2018-04-16

    To investigate the prevalence of maternal selenium deficiency and its effects on pregnancy outcomes in pregnant women with HIV in Lagos, Nigeria. The present descriptive cross-sectional study enrolled women aged 15-49 years with HIV who were at 14-26 weeks of a singleton pregnancy and were attending Lagos University Teaching Hospital, Lagos, Nigeria, between August 1, 2016, and April 30, 2017. Participants were selected by consecutive sampling and baseline data were collected through interviews. Venous blood samples were obtained to measure selenium concentrations, and associations between low maternal selenium concentrations (defined as <0.89 μmol/L) and pregnancy outcomes were examined using bivariate and multivariate analysis. The final analysis included 113 patients; selenium deficiency was recorded in 23 (20.4%) patients. Women with selenium deficiency had an approximately eight-fold higher risk of preterm delivery (adjusted odds ratio 7.61, 95% confidence interval 4.37-18.89; P=0.031) and of delivering a term neonate with a low delivery weight (adjusted odds ratio 8.11, 95% confidence interval 3.27-17.22; P=0.012), compared with women with a normal selenium concentration. The prevalence of selenium deficiency among pregnant women with HIV in Lagos was relatively high. The significant associations observed between maternal selenium deficiency and adverse pregnancy outcomes could have implications for the future management of HIV in pregnancy. © 2018 International Federation of Gynecology and Obstetrics.

  6. Uses and misuse of blood transfusion in Obstetrics in Lagos, Nigeria ...

    African Journals Online (AJOL)

    universitaire de Lagos entre la période du premier novembre 1995 et le 31 octobre 1998 été examinés rétrospectivement. Les données collectionnées comprend état de la cellule poste transfusion (PCV), et états d'obstétriques et médicaux ...

  7. El ultrasonido: desde el murciélago hasta la cardiología no invasiva

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    Fabián Dávila

    2017-03-01

    Conclusiones: Grandes avances se han logrado en consecuencia con la evolución del ultrasonido en medicina, su inicio en la ecolocalización descrita en los murciélagos hasta la ultrasonografía cardiaca en 3 D, han permitido el desarrollo de nuevas no invasivas en la medicina cardiovascular.

  8. Heavy metals in some termite species and their nests in Ojo, Lagos ...

    African Journals Online (AJOL)

    Termites feed on decaying organic matter including plant parts and wood, concentrating heavy metals in the process. The main campus of Lagos State University was surveyed for termite species and their heavy metal contents. Nests including mounds, wooden structures and discarded wood products were observed for ...

  9. PMN-Portuguese Meteor Network and OLA-Observatório do Lago Alqueva agreement

    Science.gov (United States)

    Saraiva, C.

    2018-01-01

    The PMN-Portuguese Meteor Network has two new video meteor detecting systems at OLA- Observartório do Lago Alqueva, situated at the South East Portuguese territory with a pristine night sky and more than 290 clear nights each year.

  10. Drug use indicators at a secondary health care facility in Lagos ...

    African Journals Online (AJOL)

    Objective: Drug-use indicators were measured in a secondary health care facility in Lagos, Nigeria. Method: Retrospective prescribing data was used and patient records were selected using a systematic sampling method. Results:The average number of drugs per patient was 3.5=1= 1.4, 14% of patients received at least ...

  11. Seccional del Lago Lleu Lleu extracto del resumen ejecutivo del estudio

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    Manuel Durán

    2000-08-01

    Full Text Available En el siguiente reportaje se presentan los estudios contratados por el MINVU Planes Seccionales del Lago Lleu Lleu y del Lago Pangue; realizados por las oficinas de Manuel Durán y Lira y Peña Asoc. A continuación entrevistamos al Sr. Tito Rojas, ex Director Regional de SERNATUR y actual Gobernador de la Provincia de Arauco, y a Patricio Aguirre, Director de la Carrera de Turismo del DUOC-UC sede Concepción. Mientras que los instrumentos de planificación desarrollan estrategias específicas para potenciar el turismo aprovechando las potencialidades del recurso lacustre; los entrevistados nos dan su opinión en cuanto a diversos aspectos relacionados con el turismo y los lagos de esta zona: el delicado equilibrio entre turismo y protección de los recursos; las potencialidades de las áreas aledañas a los lagos Pangue y Lleu Lleu; el patrimonio paisajístico y cultural de la provincia de Arauco, entre otros, son los aspectos que se exponen en las próximas páginas.

  12. Noise-Induced Hearing Loss in Laundry Workers in Lagos | Elias ...

    African Journals Online (AJOL)

    The noise levels and the effects of occupational noise exposure were determined in the students' hostels, administrative offices and the laundry department of Lagos University Teaching Hospital (LUTH). All 40 test subjects and 54 control had comprehensive otological screening and fulfilled other inclusion criteria.

  13. Gene frequencies of ABO and Rh(D) blood group alleles in Lagos ...

    African Journals Online (AJOL)

    Subjects and methods: This study investigated the gene frequencies for the ABO and Rh(D) alleles in a population consisting of different ages in Lagos, Nigeria, over a period spanning 12 years (1998–2009). The 23,832 and 23,764 individuals were typed for ABO and Rh blood groups, respectively. We analyzed the ...

  14. The Succession Dispute to the Throne of Lagos and the British ...

    African Journals Online (AJOL)

    info

    wives of Ologun Kutere, Adele being the son of a woman of Badagry, while Osinlokun' s mother was from Ebute Iga in Ijebu, and Akitoye's mother was a woman of Owu. (Law) Local and foreign accounts hold that ...... Little wonder Ade Ajayi commented as such, “the anxiety of Britain to intervene in. Lagos was not just the ...

  15. Exploitation of Factory Workers: A Study of Union Dicon Salt, Lagos ...

    African Journals Online (AJOL)

    The study examined labour exploitation in Nigeria with particular reference to Union Dicon Salt Plc., Lagos. The review of literature points to the fact that exploitation of the factory workers in the long run leads to strained relationships between management and staff. The situation becomes conflictual to the extent that both ...

  16. Hedonic price analysis of sheep and goat market in Lagos State ...

    African Journals Online (AJOL)

    Nigeria has substantial livestock resources but problems of infrastructure limit the trade in and the profit from the trade. This study, using the hedonic price methodology, examined the factors that influence the prices of livestock in the major livestock market in Lagos State, Nigeria's most populous urban centre. The results ...

  17. Within salvation: girl hawkers and the colonial state in development era Lagos.

    Science.gov (United States)

    George, Abosede

    2011-01-01

    For almost two decades between the close of the Second World War and Nigerian independence in 1960, the British colonial state which faced a crisis of legitimacy in Lagos upheld city ordinances that made itinerant trading by young children in Lagos a punishable status offense. Although anti-trading regulations were gender-neutral in their language, girls were disproportionately sanctioned for engaging in street trading and related activities. In defending their concentration on girl sellers over boy sellers, colonial welfare officials painted a picture of the urban context as an inherently dangerous context and of girls as being particularly at risk of violent assault in the city, making them particularly in need of protection from town life. Sources which show that parents generally resisted or ignored the street trading regulations and continued permitting their daughters to sell despite entreaties, warnings, or fines from colonial officials, suggest that African parents and British colonial officials may have had conflicting views on the inherent danger of the city, on what constituted child endangerment, and on the gendered nature of childhood. This article argues that the girl saving campaigns of development era Lagos were as much about the legitimization of a colonial state facing a crisis of legitimacy as they were about debates between African parents and colonial welfare officials in Lagos concerning ideas of children and childhood and the dangers of street trading by African girls.

  18. A Ten-Year Review of Childhood Renal Admissions into the Lagos ...

    African Journals Online (AJOL)

    A Ten-Year Review of Childhood Renal Admissions into the Lagos University Teaching Hospital, Nigeria. ... Wilms Tumor (15.3%), acute renal failure (7.4%), urinary tract infection (4.9%), posterior urethral valves 3.4%), and chronic renal failure (0.5%) in order of ranking. Mortality was 17.7% and deaths were mainly from ...

  19. HIV/AIDS Awareness of Male Prison Inmates in Lagos, Nigeria ...

    African Journals Online (AJOL)

    The prevalence of HIV/AIDS is still a major challenge to the human race and this does not preclude prison inmates. This study was therefore designed to investigate the level of HIV/AIDS awareness of male prison inmates in Lagos, South west, Nigeria. The descriptive research design was adopted. The sample for the study ...

  20. The Influence of Travel Time on Accessibility in Lagos Island | Atubi ...

    African Journals Online (AJOL)

    The aim of this paper is to establish the influence of time on accessibility in Lagos Island, Nigeria. It was observed that generally, average driving speed was observed to be lower over short than over long distance routes. High speeds tend to be concentrated within a distance band of over 2.7km but beyond 6.0km average ...

  1. The Impact of the Lagos Press in Nigeria, 1861 – 1922 ...

    African Journals Online (AJOL)

    March, 1921, with the professionalism introduced by Ernest Sisei Ikoli, the first Nigerian newspaper editor. The first and second periods above between 1859 and 1921 formed the Lagos Press that held the south-western forth for sixty years with its influence extending to 1922. Since politics enjoyed great prominence in their ...

  2. Investigation into ivory trade in selected markets and hotels in Lagos ...

    African Journals Online (AJOL)

    The market growth for wildlife trophy collection is gradually leading to a decline in animal population. Thus, trade in ivory constitutes a potential threat to biodiversity conservation. The extent of this treat was therefore investigated via a 3-month survey of trade in ivory in selected markets and hotels in Lagos, Nigeria.

  3. Perceptions and Concerns about Inclusive Education among Students with Visual Impairments in Lagos, Nigeria

    Science.gov (United States)

    Brydges, Colton; Mkandawire, Paul

    2017-01-01

    This article examines the perceptions of inclusive education in Lagos, Nigeria, based upon in-depth interviews conducted with students with visual impairments during the month of July 2013. The results and discussions are situated within critical disability theory. Despite decades of inclusive education policies, the findings of the study show…

  4. Ocular findings seen among the staff of an institution in Lagos, Nigeria

    African Journals Online (AJOL)

    Background:The degree to which ocular morbidity affects workers productivity in the developing countries has not been studied adequately. A federal government research institute based in Lagos introduced an annual health screen for all its workers, which included eye tests. This provided an opportunity to study the ...

  5. Long stay patients in a psychiatric hospital in Lagos, Nigeria | Taiwo ...

    African Journals Online (AJOL)

    Objective: In the face of recently introduced government health reform and the dwindling number of available beds for acutely ill patients, a cross sectional study was carried out on long-stay patients at the 100 years old psychiatric hospital Yaba, Lagos, Nigeria with a view to discharging most of them. Method: Necessary ...

  6. Thirty-Day Case Fatality of Stroke at the Lagos University Teaching ...

    African Journals Online (AJOL)

    Background: There is some evidence that the case fatality rate of stroke has declined in recent years, although it is not certain that this reduction has been caused by changes in stroke management. There has been no recent review of the case fatality rate of stroke at the Lagos University Teaching Hospital [LUTH].

  7. Terapeutas tradicionales andinos en un contexto de cambio: el caso de Churcampa en el Perú

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    Julio Portocarrero

    Full Text Available Objetivos. Describir la diversidad de terapeutas tradicionales, sus vínculos con el sistema de salud oficial y los cambios en sus recursos terapéuticos, en dos comunidades rurales de los andes en Churcampa, región de Huancavelica, Perú. Materiales y métodos. Estudio cualitativo en el que se combinan tres técnicas etnográficas: entrevistas en profundidad, observaciones y acompañamientos a terapeutas tradicionales y personal de salud. Resultados. Se identificaron 58 terapeutas, clasificados como curanderos, parteros y hueseros. La mayoría de terapeutas entrevistados aprendió su labor siendo joven y muy pocos tuvieron un maestro o mentor. La gran mayoría señaló tener reparos para vincularse con los establecimientos de salud más allá de las referencias. No había un trabajo articulado entre personal de salud y terapeutas tradicionales. Sin embargo, cuando sucedía, el personal de salud prefería a aquellos terapeutas que tuvieran la disposición para adecuarse a las necesidades de los servicios de salud. Se encontró que buena parte de los terapeutas estaban cambiando sus prácticas debido a la influencia de las iglesias evangélicas. Ningún terapeuta contaba con discípulos para transmitir sus conocimientos y prácticas. Conclusiones. Existe una gran diversidad de terapeutas tradicionales. Esta diversidad viene disminuyendo, entre otros factores, por el avance de las iglesias evangélicas. Los terapeutas tradicionales refieren a algunos pacientes al establecimiento de salud; mientras que el personal de salud establece relaciones jerárquicas de trabajo con los terapeutas. Se requiere trabajar estas actitudes del personal de salud pues la base de un enfoque intercultural es el trabajo articulado y horizontal entre ambos sistemas

  8. Reparación del cartílago articular con injerto libre de pericondrio estudio experimental

    OpenAIRE

    Ballesteros Vazquez, P.; Carranza Bencano, Andrés; Armas Padrón, J. R.; Saenz López de Rueda, F.

    1994-01-01

    Ante la incapacidad de regeneración espontánea de lesiones profundas y amplias del cartílago articular, estudiamos la reparación cartilaginosa con plastias de pericondrio tomadas de la región condro-costal e implantándolas con su cara condrogénica sobre una lesión osteocondral realizada en la superficie articular rotuliana. Macroscópica e histológicamente, a la octava semana, el neocartílago formado tenía igual apariencia que el cartílago hialino normal, no existiendo separació...

  9. A clinicopathological study of dyspeptic subjects in Lagos, Nigeria

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    Ladi Hameed

    2012-05-01

    Full Text Available The clinicopathological and endoscopic features of dyspepsia have not been well studied in Nigeria due to the high cost of gastroscopes and lack of the relevant expertise. This study was designed to highlight these features and possible risk factors. This prospective study was conducted on adult dyspeptic patients who fulfilled the study criteria from November 2007 to December 2008 at a University hospital in Lagos, Nigeria. Demographic and clinical presentation including possible risk factors were obtained through a questionnaire administered by an interviewer followed by an upper gastrointestinal endoscopy and gastric biopsy. Of the 123 subjects who took part in the study, 100 gave their consent to an upper gastrointestinal endoscopy and biopsy. The male:female ratio was 1:1, mean age was 44.98 (SD 15.4 years and the modal age group was 38-47years. The prevalence of dyspepsia was 29% and epigastric pain was the most common presentation. Endoscopic findings were superficial mucosal lesion (21%, peptic ulcer (16%, features of gastroesophageal reflux disease (10%, and gastric cancer (2%, as well normal findings (44%. Non-steroidal antiinflammatory drug (NSAID use as a risk factor had a significant association with positive endoscopic findings; relative risk for development of positive endoscopic findings was 1.5% (P =0.03. Histology showed rates of chronic gastritis to be 91% and normal values 9%. The most common type of gastritis was the non-specific form (59.3%, followed by H. Pylori-associated gastritis (36.3%. The topography of gastritis was mainly pangastritis (68.1% and antral predominant in 23.1%. The prevalence of H. pylori by histology was 41%. The presence of H. pylori was not associated with severity, location or duration of symptoms. H. pylori was, however, found to be a significant contributor to the development of positive endoscopic findings (P=0.01; OR 2.92 95% CI 1.50-3.17. Alarm symptoms were found to be important markers of

  10. Lista dos estoicos antigos

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    Luís Márcio Fontes

    2016-03-01

    Full Text Available Lista dos antigos estoicos confeccionada nos seminários Viva Vox por Luís Márcio Fontes e Aldo Dinucci. Apresentada em formato banner, para fins didáticos, com o estabelecimento dos nomes de filósofos e personagens históricos antigos.

  11. Lista dos estoicos antigos

    OpenAIRE

    Luís Márcio Fontes; Aldo Dinucci

    2016-01-01

    Lista dos antigos estoicos confeccionada nos seminários Viva Vox por Luís Márcio Fontes e Aldo Dinucci. Apresentada em formato banner, para fins didáticos, com o estabelecimento dos nomes de filósofos e personagens históricos antigos.

  12. Evaluation of rare earth elements in groundwater of Lagos and Ogun States, Southwest Nigeria.

    Science.gov (United States)

    Ayedun, H; Arowolo, T A; Gbadebo, A M; Idowu, O A

    2017-06-01

    Rare earth elements in our environment are becoming important because of their utilization in permanent magnets, lamp phosphors, superconductors, rechargeable batteries, catalyst, ceramics and other applications. This study was conducted to evaluate the level of rare earth elements (REE) and the variability of their anomalous behavior in groundwater samples collected from Lagos and Ogun States, Southwest, Nigeria. REE concentrations were determined in 170 groundwater samples using inductively coupled plasma-mass spectrometry, while the physicochemical parameters were determined using standard methods. Lagos State groundwater is enriched with REE [sum REEs range (mean ± SD)]; [0.365-488 (69.5 ± 117)] µg L -1 than Ogun State groundwater [sum REEs range (mean ± SD)]; [1.14-232 (22.6 ± 41.1)] µg L -1 . Boreholes are more enriched with REEs than wells. Significant (P < 0.05) positive correlation (R = Pearson) was recorded in Lagos State groundwater between sum REEs and Fe (R = 0.55). However, there were no significant correlations between sum REEs, pH (R = 0.073) and HCO 3 2- (R = 0.157) in Ogun State groundwater. Chondrite-normalized plot shows that Lagos groundwater exhibits positive Ce anomaly, while Ogun State groundwater does not. The source of REE in Lagos State may be from the ocean and leaching from wastes dumpsites, while the source in Ogun State groundwater may be from the rocks.

  13. Mothers' human papilloma virus knowledge and willingness to vaccinate their adolescent daughters in Lagos, Nigeria

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    Ezenwa BN

    2013-07-01

    Full Text Available Beatrice N Ezenwa,1 Mobolanle R Balogun,2 Ifeoma P Okafor2 1Department of Pediatrics, 68 Nigerian Army Reference Hospital, Lagos State, Nigeria; 2Department of Community Health and Primary Care, College of Medicine, University of Lagos, Lagos State, Nigeria Introduction: Human papillomavirus (HPV is one of the most common sexually transmitted infections in sexually active adolescents and young women and has been implicated as a cause of the majority of cases of cervical cancer, which is the second most common cancer in women in Nigeria. HPV is preventable with the use of HPV vaccines. Objectives: The objective of this study was to assess mothers' HPV knowledge and their willingness to vaccinate their adolescent daughters in Lagos, Nigeria. Materials and methods: This study was a community-based, descriptive cross-sectional study carried out in July, 2012 in Shomolu Local Government Area (LGA of Lagos State, Nigeria. Multistage sampling method was employed to select the 290 respondents who participated in the study. Structured, pretested, interviewer-administered questionnaires were used for data collection. Data was analyzed with Epi-Info™ version 7. Results: The study revealed low awareness of HPV (27.9% and HPV vaccines (19.7% among the mothers that participated. There was a high awareness for cervical cancer but little knowledge of its link to HPV. Awareness and utilization of HPV vaccines increased with increasing educational level (P<0.05. There was a high willingness and intention among the mothers to vaccinate their girls (88.9% and to recommend the vaccine to others (91.0%. Accessibility and affordability of the HPV vaccines were found to be possible barriers to future utilization of the vaccines. Conclusion: Despite low knowledge about HPV and HPV vaccines, mothers were willing to vaccinate their daughters. We recommend improving mothers' knowledge by education and the possible inclusion of the vaccine in the national immunization

  14. Stakeholders views on why child overweight and obesity is rising in Lagos, Nigeria: A qualitative study

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    Adeteju A Adedini

    2016-01-01

    Full Text Available Background and Objective: According to the World Health Organization, the number of obese children would increase to 70 million by 2025 if no intervention is made. An increase in the prevalence of overweight and obesity among school children in Lagos State, Nigeria has been established, but specific factors promoting its prevalence are unknown. The aim of this study was to elicit the views of stakeholders on the perceived causes for the rise in child overweight and obesity. Methods: Five focus group discussions were conducted with different groups of stakeholders involved in child care, namely: Parents, teachers, and healthcare givers. Participants were recruited using a purposive sampling method; a structured question guide was employed for the discussion sessions. The discussions were recorded, collated, and analyzed using grounded theory to extract themes. Results: Six themes emerged as factors responsible for the rise, of which civilization and lifestyle imbalance of the populace emerged as the prominent cause. Of the fifty respondents, 76% of respondents identified parents (particularly young mothers as major contributors to the prevalence of overweight and obesity in children of Lagos State; and 52.3% of the participants reported that a direct relationship exists between income class of parent and weight of a child resident in Lagos. Conclusion: Civilization and lifestyle imbalance, insecurity and congestion, low level of public awareness, inadequate educative and enlightenment programs, myths and societal perception were factors identified to responsible for the rise in the prevalence of child obesity in Lagos, Nigeria. Preventive strategies to control the prevalence of overweight and obesity in children residing in Lagos State should be considered for further studies.

  15. Sedimentation survey of Lago Cerrillos, Ponce, Puerto Rico, April-May 2008

    Science.gov (United States)

    Soler-López, Luis R.

    2011-01-01

    Lago Cerrillos dam, located in the municipality of Ponce in southern Puerto Rico, was constructed in 1991 as part of the multipurpose Rio Portugues and Bucana Project. This project provides flood protection, water supply, and recreation facilities for the municipio of Ponce. The reservoir had an original storage capacity of 38.03 million cubic meters at maximum conservation pool elevation of 174.65 meters above mean sea level and a drainage area of 45.32 square kilometers. Sedimentation in Lago Cerrillos reservoir has reduced the storage capacity from 38.03 million cubic meters in 1991 to 37.26 million cubic meters in 2008, which represents a total storage loss of about 2 percent. During July 29 to August 23, 2002, 8,492 cubic meters of sediment were removed from the Rio Cerrillos mouth of the reservoir. Taking into account this removed material, the total water-storage loss as of 2008 is 778,492 cubic meters, and the long-term annual water-storage capacity loss rate is about 45,794 cubic meters per year or about 0.12 percent per year. The Lago Cerrillos net sediment-contributing drainage area has an average sediment yield of about 1,069 cubic meters per square kilometer per year. Sediment accumulation in Lago Cerrillos is not uniformly distributed and averages about 3 meters in thickness. This represents a sediment deposition rate of about 18 centimeters per year. On the basis of the 2008 reservoir storage capacity of 37.26 million cubic meters per year and a long-term sedimentation rate of 45,794 cubic meters per year, Lago Cerrillos is estimated to have a useful life of about 814 years or until the year 2822.

  16. Assessing the deep drilling potential of Lago de Tota, Colombia, with a seismic survey

    Science.gov (United States)

    Bird, B. W.; Wattrus, N. J.; Fonseca, H.; Velasco, F.; Escobar, J.

    2015-12-01

    Reconciling orbital-scale patterns of inter-hemispheric South American climate during the Quaternary requires continuous, high-resolution paleoclimate records that span multiple glacial cycles from both hemispheres. Southern Andean Quaternary climates are represented by multi-proxy results from Lake Titicaca (Peru-Bolivia) spanning the last 400 ka and by pending results from the Lago Junin Drilling Project (Peru). Although Northern Andean sediment records spanning the last few million years have been retrieved from the Bogota and Fúquene Basins in the Eastern Cordillera of the Colombian Andes, climatic reconstructions based on these cores have thus far been limited to pollen-based investigations. When viewed together with the Southern Hemisphere results, these records suggest an anti-phased hemispheric climatic response during glacial cycles. In order to better assess orbital-scale climate responses, however, independent temperature and hydroclimate proxies from the Northern Hemisphere are needed in addition to vegetation histories. As part of this objective, an effort is underway to develop a paleoclimate record from Lago de Tota (3030 m asl), the largest lake in Colombia and the third largest lake in the Andes. One of 17 highland tectonic basins in Eastern Cordillera, Lago de Tota formed during Tertiary uplift that deformed pre-foreland megasequences, synrift and back-arc megasequences. The precise age and thickness of sediments in the Lago de Tota basin has not previously been established. Here, we present results from a recent single-channel seismic reflection survey collected with a small (5 cubic inch) air gun and high-resolution CHIRP sub-bottom data. With these data, we examine the depositional history and sequence stratigraphy of Lago de Tota and assess its potential as a deep drilling target.

  17. The Effect of Manpower Planning and Development in Lagos State (Nigeria Civil Service Performance

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    Chinyeaka J. Igbokwe-Ibeto

    2015-12-01

    Full Text Available The study examined effects of manpower planning and development in Lagos state civil service performance. Lagos state civil service is the greatest asset of the state in its quest for socio-economic development. The primary question that was explored is whether the nature of manpower planning and development curriculum in Lagos state civil service has effect on the service performance and the attainment of state objective. The study relied on primary and secondary data, and multiple stage sampling technique was used to select the sample population. The data collected was presented in frequency bar chart and simple percentage. Pearson’s Product Moment Correlation Coefficient (PPMC statistical tool was used to test the hypotheses. Findings of the study show that the nature of manpower planning and development curriculum has a positive effect on the Lagos state civil performance. It also reveals that the manpower planning and development has a positive effect on the attainment of Lagos state objective. To achieve better performance in the service, it should among others, improve on the current manpower planning strategy and continue to update its manpower development curriculum in line with the global best practices. Given the pivotal role that technology plays in the 21st century, the service should avail itself the windows of opportunities that information technology provides in its drive to enhance employees’ skills, knowledge and abilities that will invariably improve the service performance. Yet, the service should imbibe the prescripts of New PublicManagement theory (NPM, and that goals and targets should be defined and measurable as indicators of organizational performance.

  18. Digestibilidad del polen de cactáceas columnares en los murciélagos glosofaginos Glossophaga longirostris y Leptonycteris curasoae (Chiroptera:Phyllostomidae

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    Mariana Muñoz-Romo

    2005-06-01

    Full Text Available Para estudiar la asimilación protoplasmática de los granos de polen de cactáceas columnares en dos especies de murciélagos glosofaginos, determinamos el porcentaje de granos de polen vacíos (digeridos en muestras fecales de Glossophaga longirostris y Leptonycteris curasoae , capturados en una zona árida de Venezuela. Para determinar el porcentaje de granos de polen digeridos por los murciélagos, aplicamos un colorante sobre las muestras fecales que permite diferenciar sin dificultad el polen vacio del polen lleno. Después de cuantificar los granos de polen de ambas categorías en las muestras fecales, los valores fueron corregidos tomando en cuenta el porcentaje de polen vacío (previo a la antesis en las flores maduras de las especies de cactáceas columnares (Subpilocereus repandus, Stenocereus griseus y Pilosocereus tillianus . G. longirostris asimila el 64.2% de los granos de polen que ingiere y L. curasoae asimila el 71.3%. Estos elevados porcentajes confirman la importancia del polen en la dieta de estos murciélagos, dado su alto contenido de nitrógenoDigestibility of columnar cacti pollen grains in the glosophagine bats Glossophaga longirostris and Leptonycteris curasoae (Chiroptera: Phyllostomidae. We examined the protoplasmic assimilation of columnar cacti pollen grains in two species of Venezuelan desert glosophagine bats, Glossophaga longirostris and Leptonycteris curasoae, by determining the amount of empty (digested pollen grains found in their fecal samples. To determine the amount of empty pollen grains, the fecal samples were stained to differ between empty and full (non-digested pollen grains. The number of empty and full pollen grains observed in the fecal samples were corrected using the amount of aborted pollens present (before anthesis in flowers of the columnar cacti species (Subpilocereus repandus, Stenocereus griseus and Pilosocereus tillianus used by bats as food in the study site; G. longirostris and L

  19. Atividade pesqueira dos índios Mura no Lago Ayapuá, Baixo Rio Purus, Amazonas, Brasil

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    Artur Bicelli Coimbra, M.Sc.

    2017-03-01

    Full Text Available The artisanal fisheries has great importance forthe Amazonian indigenous communities, as a form of subsistence, and for the cultural and tradition of these communities. In this study, we analyzed the fishery developed in four indigenous communities of the Mura people indigenous of the Lake Ayapuá Land,in the lower Purus River. The fishes were classified according to the composition and importance of the species in weight and number of DOI: http://dx.doi.org/10.20873/uft.2359-3652.2017v4n1p115Revista Desafios –v. 04, n. 1, 2017116individuals, structure and size of the individuals captured, and total weight of the catches, between October and December of 2008. The most commercialized species were the Aruanã (Osteoglossumbicirrhosum, the pescada (Plagioscionsquamosissimus, the "feras" or big catfish (dourada, Brachyplatystomarousseauxiiand the filhote Brachyplatystomafilamentosum and the tucunaré (Cichlamonoculus. The most commonly consumed species were aruanã, tucunaré, piranha-caju (Pygocentrusnattereri and acará-açu (Astronotuscrassipinni. Species such as tucunaré and pescada have catch sizes within the standards permitted by legislation. However, acará-açu, aruanã, tambaqui (Colossomamacropomum, surubim (Pseudoplatystomapunctifer, caparari (Pseudoplatystomatigrinum, filhote and dourada do not have the same legal standard. Most of the production (87% was destined for commercialization with Fish buyer. Preventive and mitigating measures are proposed to ensure the permanence of fish stocks and consequently the sustainability of fishing and the maintenance of the local population.

  20. PRODUCCIÓN HORTÍCOLA A BAJA ESCALA EN EL LÍMITE CONTINENTAL DEL DESARROLLO ANDINO: UN APORTE DESDE LA ARQUEOBOTÁNICA

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    Carina Llano

    2017-01-01

    Full Text Available Llano, C.; V. Cortegoso & E. Marsh. 2017. Producción hortícola a baja escala en el límite continental del desarrollo andino: un aporte desde la arqueobotánica. Darwiniana , nueva serie 5(2: 109-125. Los macrorrestos vegetales recuperados en el sitio Los Conitos (noroeste de Mendoza, Argentina proporcionan evidencia del consumo y manejo de especies de plantas silvestres y domésticas. Con base en estos datos, el objetivo de este trabajo es mejorar nuestra comprensión del proceso socioeconómico de recolección y manejo de especies de plantas durante el Holoceno Tardío. El método de recuperación fue cribado en seco. La cronología se basa en ocho fechas de radiocarbono que abarcan los últimos tres mil años, que se evalúan junto con los restos macrobotánicos. De los 207 restos, Prosopis (“algarrobo” fue el más ubicuo. Los niveles de excavación se agruparon en cuatro componentes de ocupación. En el com- ponente IV más antiguo, no se documentaron taxones vegetales; el componente III incluye la presencia más temprana de restos de plantas domésticas, Cucurbita (“zapallo” y un predominio de especies de plantas silvestres; el componente II muestra una diversificación del uso de los recursos vegetales; final - mente, el componente I incluyó solo plantas silvestres. Se proponen algunas explicaciones alternativas de la incorporación, reemplazo y/o permanencia de las prácticas productoras y recolectoras que pueden vincularse a: estrés abiótico que afecta las prácticas hortícolas, aumento e intensificación demográfica y la llegada de migrantes con una base de subsistencia diversificada. La conclusión principal nos permite esbozar una imagen de la implementación de sistemas hortícolas de pequeña escala que comenzó hace alrededor de 1500 años, durante los cuales la recolección siguió siendo importante para la subsistencia.

  1. DEVOCIONES DE INMIGRANTES: INDÍGENAS ANDINOS Y PLURIETNICIDAD URBANA EN LA CONFORMACIÓN DE COFRADÍAS COLONIALES (SANTIAGO DE CHILE, SIGLO XVII

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    Jaime Valenzuela Márquez

    2010-06-01

    Full Text Available En los orígenes de Chile colonial nos encontramos con numerosos indígenas andinos que sirvieron a los españoles, se asentaron y se integraron en los espacios laborales y sociales de este “nuevo mundo” periférico; formaron redes y parentescos locales, tuvieron descendencia, varios se transformaron en artesanos y algunos dictaron testamentos o dejaron huellas en documentos eclesiásticos y notariales que nos permiten observar su participación en las cofradías de la capital chilena. Estas corporaciones, por su parte, si bien remiten a una finalidad eminentemente religiosa, también actúan como un canal privilegiado para la inserción y movilidad de población diversa. Bajo esta perspectiva, nuestro artículo analiza las principales cofradías en las cuales participaron estos inmigrantes, vinculando prácticas religiosas, redes sociales y espacios laborales. Las cofradías estudiadas se revelan, entonces, como instancias representativas de la diversidad de orígenes geográficos y étnicos de sus integrantes, así como de la pluralidad de referentes identitarios que circulaban e interactuaban en un escenario urbano colonial como Santiago de Chile.In the origins of colonial Chile it is possible to find numerous Andean Indians who worked for Spaniards, settled and were integrated in labor and social spaces of this peripheral “new world”. They established local nets and relationships, and had descendants. Many became craftmen and some left wills or traces on ecclesiastic and notarial documents that allow us to observe their participation in brotherhoods created in Chile’s capital. These corporations had a religious aim, but worked as privileged channels for the insertion and mobility of diverse people. Under this premise, this article analyzes the main brotherhoods in which these immigrants participated, linking religious practices with their social nets and working spaces. The brotherhoods studied reveal themselves as instances that

  2. Inter-annual chemical stratification in Brazilian natural lakes: meromixis and hypolimnetic memory Estratificação química em lagos naturais brasileiros: meromixia e memória hipolimnética

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    Luciana Gomes Barbosa

    2012-06-01

    nutrientes foram realizadas mensalmente, durante cinco anos consecutivos no perfil vertical dos dois lagos. RESULTADOS: as análises multivariadas indicaram que o longo período de estratificação térmica favoreceu a ocorrência de estratificação química nos dois lagos. No entanto, no lago mais profundo, o perfil térmico estratificado, com elevadas concentrações hipolimnéticas de nutrientes, condutividade, sólidos totais dissolvidos e potencial redox indicaram que a mistura não foi completa mesmo durante o período de circulação anual, sugerindo uma leve meromixia e alta estabilidade química no hipolímnio. No lago mais raso, elevada atenuação de luz e alta disponibilidade das formas nitrogenadas (principalmente N-NH4 e fosfatadas foram observadas em toda a coluna d'água, mesmo durante a estratificação. No lago mais profundo, foram observadas co-limitação por N e P e baixas coeficientes de atenuação da luz. CONCLUSÃO: os padrões de estratificação térmica e química indicaram que a lagoa Carioca é um lago raso, de rápida circulação com águas túrbidas, rico em nutrientes, enquanto o lago Dom Helvécio é um lago profundo, de águas claras, oligotrófico, com tendência à meromixia e ao isolamento de solutos no hipolímnio. Nesse contexto, a meromixia foi comparada a uma "memória hipolimnética" que foi definida, no caso do lago mais profundo, como a persistência da estratificação química ao longo dos anos durante o período de sua circulação térmica.

  3. Dam failure analysis for the Lago El Guineo Dam, Orocovis, Puerto Rico

    Science.gov (United States)

    Gómez-Fragoso, Julieta; Heriberto Torres-Sierra,

    2016-08-09

    The U.S. Geological Survey, in cooperation with the Puerto Rico Electric Power Authority, completed hydrologic and hydraulic analyses to assess the potential hazard to human life and property associated with the hypothetical failure of the Lago El Guineo Dam. The Lago El Guineo Dam is within the headwaters of the Río Grande de Manatí and impounds a drainage area of about 4.25 square kilometers.The hydrologic assessment was designed to determine the outflow hydrographs and peak discharges for Lago El Guineo and other subbasins in the Río Grande de Manatí hydrographic basin for three extreme rainfall events: (1) a 6-hour probable maximum precipitation event, (2) a 24-hour probable maximum precipitation event, and (3) a 24-hour, 100-year recurrence rainfall event. The hydraulic study simulated a dam failure of Lago El Guineo Dam using flood hydrographs generated from the hydrologic study. The simulated dam failure generated a hydrograph that was routed downstream from Lago El Guineo Dam through the lower reaches of the Río Toro Negro and the Río Grande de Manatí to determine water-surface profiles developed from the event-based hydrologic scenarios and “sunny day” conditions. The Hydrologic Engineering Center’s Hydrologic Modeling System (HEC–HMS) and Hydrologic Engineering Center’s River Analysis System (HEC–RAS) computer programs, developed by the U.S. Army Corps of Engineers, were used for the hydrologic and hydraulic modeling, respectively. The flow routing in the hydraulic analyses was completed using the unsteady flow module available in the HEC–RAS model.Above the Lago El Guineo Dam, the simulated inflow peak discharges from HEC–HMS resulted in about 550 and 414 cubic meters per second for the 6- and 24-hour probable maximum precipitation events, respectively. The 24-hour, 100-year recurrence storm simulation resulted in a peak discharge of about 216 cubic meters per second. For the hydrologic analysis, no dam failure conditions are

  4. A cidade dos outros

    Directory of Open Access Journals (Sweden)

    Ernesto Venturini

    2009-08-01

    Full Text Available Os percursos costumeiros dentro da cidade em que vivemos desenham nosso "mapa da cidade". A tipologia deste mapa depende fundamentalmente de nosso nível social. Examinou-se, anteriormente, o mapa da cidade dos pacientes que saíram do hospital psiquiátrico, para avaliar os efeitos da desinstitucionalização. Hoje, examina-se como vive o clandestino dentro das cidades italianas. O mapa do clandestino se baseia na degradação; evidencia mecanismos de intolerância e de acolhida; permite entender como as pessoas se enrijecem em suas posições ou, ao contrário, como as identidades dos sujeitos interagem e favorecem mudanças e emancipação. A escolha se funda na disponibilidade dos sujeitos e é fortemente influenciada pelas políticas públicas de respeito dos direitos das pessoas.

  5. INDICADORES DE DIFERENCIAÇÃO SOCIAL E DE GÊNERO DOS PESCADORES-COLETORES QUE OCUPARAMA REGIÃO DOS LAGOS-RJ

    Directory of Open Access Journals (Sweden)

    Eliana Escórcio

    2012-09-01

    Full Text Available Analisamos os acompanhamentos funerários presentes no sítio Corondó em busca de indicadores de diferenciações sociais e de gênero. Por muito tempo, os grupos construtores de sambaquis foram vistos como bandos nômades coletores de moluscos, com uma organização social bastante simples, mas evidências de estabilidade territorial e de statusdiferenciado colocaram em discussão este modelo. A análise empreendida confirmou a presença de hierarquia social no grupo em questão, de elementos que diferenciam adultos e jovens, e de elementos associados aos gêneros, entre os quais um aumento do prestígio feminino ao longo do tempo.PALAVRAS-CHAVE: sambaqui, diferenciações sociais, gênero. ABSTRACT:The mortuary data from the Corondó archaeological site have been analysed in search of markers of social and gender differentiations. For a long time, the sambaqui moundbuilders had been seen as mollusc gatherers bands of nomads with a very simple social organization but evidences of territorial stability and differentiated status challenged this model. The analysis presented here confirmed the existence of social hierarchy among the group in question; ithas also indicated elements that differentiate adults from children and adolescents, as well as those concerning gender relations, among which an increasing of feminine prestige along the time. KEY-WORDS : sambaqui,social differentiations, gender.

  6. The relationship between red blood cell distribution width and blood pressure in patients with type 2 diabetes mellitus in Lagos, Nigeria

    OpenAIRE

    Dada, Olusola Akinola; Uche, Ebele; Akinbami, Akinsegun; Odesanya, Majeed; John-Olabode, Sarah; Adediran, Adewumi; Oshinaike, Olajumoke; Ogbera, Anthonia Okeoghene; Okunoye, Olaitan; Arogundade, Olanrewaju; Aile, Kingsley; Ekwere, Timothy

    2014-01-01

    Olusola Akinola Dada,1 Ebele Uche,2 Akinsegun Akinbami,2 Majeed Odesanya,3 Sarah John-Olabode,4 Adewumi Adediran,5 Olajumoke Oshinaike,1 Anthonia Okeoghene Ogbera,1 Olaitan Okunoye,6 Olanrewaju Arogundade,2 Kingsley Aile,7 Timothy Ekwere8 1Department of Medicine, Lagos State University, 2Department of Haematology and Blood Transfusion, Lagos State University, College of Medicine, Ikeja, Nigeria; 3Oak Hospitals, Ikorodu, Lagos, Nigeria; 4Department of Haematology, Ben Carson School of Medicine...

  7. ACCESSIBILITY TO MOBILE TELECOMMUNICATION SERVICES AND ADOPTION OF E-LEARNING IN TERTIARY EDUCATIONAL INSTITUTIONS IN LAGOS STATE, NIGERIA: A PILOT STUDY

    OpenAIRE

    ONIGBINDE Isaac Oladepo

    2013-01-01

    The primary aim of this survey was to examine the effect of accessibility to mobile telecommunication service on the adoption of e-learning in tertiary educational institutions in Lagos State, Nigeria. One hundred students of the University of Lagos and Lagos State University were randomly selected and administered questionnaire at pilot stage. Two hypotheses were postulated to guide the study. Data were analyzed using descriptive statistics and parametric statistical tool for correlational a...

  8. Travel Characteristics and Commuting Pattern of Lagos Metropolis Residents: an Assessment

    Directory of Open Access Journals (Sweden)

    OSOBA, Samson Babatunde

    2015-06-01

    Full Text Available Urban travel is not solely the function of travel, but also on people’s participation in activities and how these were done. This study utilized 2,500 households’ samples in Lagos metropolis. The questionnaire about intra-city trip patterns was administered in direct proportion to the population size of each Local Government Areas (LGAs. Systematic sampling technique was used to select every tenth building on the identified streets. lt is observed that more than 95% of residents depends on roads, while less than 5% depends on Rail and Ferry. Work and business trips characterized the weekdays, while social, shopping and recreation trips dominate the weekends. This situation leads to too many vehicular traffic on the roads during the peak periods, leading to congestion and loss of valuable man-hours. Transportation planners in Lagos need to develop alternative intra-city transportation systems.

  9. Efecto de la impermeabilidad del Mucílago de Nopal en bloques de tierra comprimidos

    Directory of Open Access Journals (Sweden)

    Yolanda Guadalupe Aranda Jiménez

    2013-01-01

    Full Text Available La arquitectura de tierra1 es conocida desde hace siglos, sin embargo, actualmente es poco utilizada comparado con los sistemas constructivos comunes. Los bloques de tierra comprimido (BTC son elementos constructivos con un potencial elevado para ser utilizado en las construcciones de vivienda en México, principalmente por su similitud con los bloques tradicionales, siendo conveniente mejorar sus características a partir de un estabilizante. Se realizó el estudio de BTC estabilizados con cemento y una sustancia proveniente de las pencas maduras de nopal. Se encontró que al añadir mucílago de nopal se observa un incremento significativo de la resistencia a la compresión húmeda y seca, lo cual estar relacionado con una disminución de la porosidad; se ofrecen algunas relaciones del efecto del mucílago en el sólido analizado.

  10. growth pattern and the industrial development of the lagos region, nigeria

    Directory of Open Access Journals (Sweden)

    Dickson Dare Ajayi

    2013-07-01

    Full Text Available This paper examines the nature, growth and spatial pattern of industries within the Lagos Region. Industrial activities in this region grew progressively over the year from mere brickwork, palm oil mills, printing press, soap factory, and metal container factory to capital intensive manufacturing. Indeed, the number of industrial establishments increased from 122 in 1962 to 637 in 1993. Lagos developed into Nigeria's leading industrial center; especially following the expansion in its service and administrative sectors. Whereas, chemicals and pharmaceutical; and basic metal, iron and steel and fabricated metal products industry groups dominate in industrial scene, wood and wood products (including furniture; and non-metallic mineral products are rare. The spatial pattern shows that industrial establishments vary amongst the industrial estates/areas, and also among the industry groups. Ikeja/Ogballsheri industrial estate/area dominates the industrial scene.

  11. Electrocardiographic Study in Adult Homozygous Sickle Cell Disease Patients in Lagos, Nigeria

    OpenAIRE

    Dosunmu, Adedoyin; Akinbami, Akinsegun; Uche, Ebele; Adediran, Adewumi; John-Olabode, Sarah

    2016-01-01

    Background. This study sought to identify the pattern of electrocardiographic changes in steady state adult sickle cell anaemia. Methods. A case-control, cross-sectional study was conducted amongst sickle cell patients attending the sickle cell clinic of Lagos State University Teaching Hospital, Ikeja, and HbAA controls. All consenting participants had haemoglobin electrophoresis done and were subjected to electrocardiography (ECG). The descriptive data were given as means ? standard deviatio...

  12. Head circumference of children with sickle cell disease in Lagos, Nigeria

    OpenAIRE

    Senbanjo, Idowu Odunayo; Oshikoya, Kazeem Adeola; Salisu, Mohammed; Diaku-Akinwumi, Ijeoma Nnenna

    2016-01-01

    Introduction Growth retardation and under-nutrition are common in children with sickle cell disease (SCD). The aim of this study was to compare the head circumference (HC) of SCD children and non-SCD children and to determine the effect of malnutrition on head circumference of children with SCD. Methods This was a prospective case-control study conducted at the Lagos State University Teaching Hospital, Nigeria, involving SCD children (subject, n = 118) and non-SCD children (control, n = 118) ...

  13. The influence of male partners on contraceptive usage in sub-Saharan Africa-Lagos experience

    OpenAIRE

    Omololu Adegbola; Fatimah Murtazha Habeebu-Adeyemi

    2016-01-01

    Background: Family planning programs, researches, and studies have focused mainly on women with little attention to men′s role in the contraceptive choices by the couple. Men′s exclusion from these programs has serious implications on the acceptance and use of contraceptives by the couple. Objective: To determine the influence of male partners on contraceptive use of their spouses. Subjects and Methods: This was a cross-sectional descriptive study at a Tertiary Care Centre in Lagos, Nigeria. ...

  14. An Audit of Anaesthesia Record-keeping at the Lagos University ...

    African Journals Online (AJOL)

    An Audit of Anaesthesia Record-keeping at the Lagos University Teaching Hospital. ... in the re-audit were Pre-operative history (51% to 91% p<0.0001), blood pressure (65% to 78% p=0.04), pulse rate (47% to 65% p=0.015), administration of premedication (30% to 63% p<0.001), and ASA score (60% to 78%, p=0.009).

  15. Airline Service Quality Dimensions and Customer Loyalty: Empirical Evidence from Air Passengers’ in Lagos State

    OpenAIRE

    Ben Akpoyomare Oghojafor; Kunle Adeosun Ladipo Patrick; Ganiyu Rahim Ajao

    2016-01-01

    Air travellers are increasingly becoming more demanding in terms of their expectations of the quality of service offered by airline carriers. Hence, operators must improve service delivery to retain their loyalty. This study investigates the relationship between airline service quality dimensions and customer loyalty among air passengers in Lagos state. Causal research design was adopted to examine the aforementioned relationship. Convenience sampling technique was used to survey 600 air trav...

  16. Reprint of Ecological health status of the Lagos wetland ecosystems: Implications for coastal risk reduction

    Science.gov (United States)

    Agboola, Julius I.; Ndimele, Prince E.; Odunuga, Shakirudeen; Akanni, Adeniran; Kosemani, Bosede; Ahove, Michael A.

    2016-12-01

    Lagos, a major urban agglomeration in the world is characterized by wetlands and basin for upstream rivers such as Ogun, Oshun and Yewa Rivers. Ongoing environmental pressures exerted by large-scale land reclamation for residential quarters, refuse and sewage dumping, and other uses, however, are suspected to have had a substantial impact on ecological health of the Lagos wetland ecosystems over the last few decades. To determine the impact of these pressures, we examined spatial changes in three wetlands areas- Badore/Langbasa (BL), Festac/Iba/Ijegun (FI) and Ologe/Otto-Awori (OO) through field sample collection and analyses of surface water, sediments, air-water interface gas fluxes and vegetations. Surface water conductivity, total suspended solids (TSS), alkalinity, chloride, biological oxygen demand (BOD), nitrate, phosphate and heavy metals (Zn, Cu, Fe, Na, Mn, Pb, Cd, K and Ni) exhibited relative spatial stability while other water quality parameters varied significantly (P < 0.05) across the wetland areas. Also, dissolved inorganic carbon (DIC) contributed to most of the total dissolved solids (TDS) since only DIC correlated significantly with TDS (r = 0.889; P = 0.05, n = 12) and TS (r = 0.891; P = 0.05, n = 12), suggesting a strong capacity for carbon sequestration and carbon sink across the wetland areas. None of the encountered vegetation species are in the vulnerable category of the International Union for Conservation of Nature (IUCN). There are indications of steady rise in greenhouse gas levels in Lagos since air CO2 value at BL have reached global threshold of 400 ppm with OO and FI closely approaching. We conclude that the Lagos wetland ecosystems, especially OO and FI still have some semblance of natural habitat. However, further destruction and unwise use of the resources could cause damage to physical, chemical, geological and biological processes in nature, which could result to grave socio-economic and cultural consequences to the local

  17. Ecological health status of the Lagos wetland ecosystems: Implications for coastal risk reduction

    Science.gov (United States)

    Agboola, Julius I.; Ndimele, Prince E.; Odunuga, Shakirudeen; Akanni, Adeniran; Kosemani, Bosede; Ahove, Michael A.

    2016-12-01

    Lagos, a major urban agglomeration in the world is characterized by wetlands and basin for upstream rivers such as Ogun, Oshun and Yewa Rivers. Ongoing environmental pressures exerted by large-scale land reclamation for residential quarters, refuse and sewage dumping, and other uses, however, are suspected to have had a substantial impact on ecological health of the Lagos wetland ecosystems over the last few decades. To determine the impact of these pressures, we examined spatial changes in three wetlands areas- Badore/Langbasa (BL), Festac/Iba/Ijegun (FI) and Ologe/Otto-Awori (OO) through field sample collection and analyses of surface water, sediments, air-water interface gas fluxes and vegetations. Surface water conductivity, total suspended solids (TSS), alkalinity, chloride, biological oxygen demand (BOD), nitrate, phosphate and heavy metals (Zn, Cu, Fe, Na, Mn, Pb, Cd, K and Ni) exhibited relative spatial stability while other water quality parameters varied significantly (P < 0.05) across the wetland areas. Also, dissolved inorganic carbon (DIC) contributed to most of the total dissolved solids (TDS) since only DIC correlated significantly with TDS (r = 0.889; P = 0.05, n = 12) and TS (r = 0.891; P = 0.05, n = 12), suggesting a strong capacity for carbon sequestration and carbon sink across the wetland areas. None of the encountered vegetation species are in the vulnerable category of the International Union for Conservation of Nature (IUCN). There are indications of steady rise in greenhouse gas levels in Lagos since air CO2 value at BL have reached global threshold of 400 ppm with OO and FI closely approaching. We conclude that the Lagos wetland ecosystems, especially OO and FI still have some semblance of natural habitat. However, further destruction and unwise use of the resources could cause damage to physical, chemical, geological and biological processes in nature, which could result to grave socio-economic and cultural consequences to the local

  18. Extent of pharmacovigilance among resident doctors in Edo and Lagos states of Nigeria.

    Science.gov (United States)

    Ohaju-Obodo, J O; Iribhogbe, O I

    2010-02-01

    Systematic attention to adverse drug reactions (ADRs) started with the thalidomide disaster in the early 60s of the 20(th) century. In 1968 ten countries supported a spontaneous reporting system for ADR and collaborated with the WHO pilot research project for international drug monitoring. This survey was conducted to determine the level of awareness of resident doctors about ADRs reporting, the extent of their involvement in pharmacovigilance activities and to build a useful data base that will improve the quality of health care in Nigeria. This cross-sectional observational survey was conducted in University of Benin Teaching Hospital (UBTH) and Irrua Specialist Teaching Hospital (ISTH), Lagos University Teaching Hospital (LUTH) and Lagos State University Teaching Hospital (LASUTH) in Edo and Lagos states, Nigeria, respectively. STUDY DESIGN / METHODS: A cross-sectional observational survey was used in this study. Total population under survey being 971 residents with the sample size of 350 statistically determined. The survey conducted revealed that 78.1% (258) of the respondents had inadequate knowledge about pharmacovigilance with 71.2% (235) unaware of the yellow forms for ADR reporting distributed by the National Agency for Food and Drug Administration and Control (NAFDAC). The respondents (92.4%) have observed ADRs in the course of their training and practice, yet only 25.5% of cases were reported. The reported cases (7.3%) were to the National Agency for Food and Drug Administration and Control. The study showed a statistically significant difference between the institution of respondents, knowledge and experience about pharmacovigilance (p Edo and Lagos states. This may be what obtains in other states in Nigeria.

  19. FACTORS RESPONSIBLE FOR EXTRAMARITAL AFFAIRS AS PERCEIVED BY MARRIED ADULTS IN LAGOS, NIGERIA

    Directory of Open Access Journals (Sweden)

    Maureen Ogwokhademhe

    2013-07-01

    Full Text Available The study investigates factors responsible for extramarital affairs as perceived by married adults in Lagos metropolis. Extramarital affair has been described by many authors and scholars and has been identified as one of the causes of marital problem. Descriptive survey method was employed for this study and the population is all married adults in Lagos metropolis. A total number of 200 respondents were randomly selected in Lagos metropolis and a self developed instrument titled “Factors Responsible for Extramarital Affairs Questionnaire” (FAREAQ was used to collect relevant data from the respondents. Collected data were analyzed with both descriptive and inferential statistics. Descriptive static was employed for the personal data and research question and inferential statistic was used to analyze the hypotheses generated for the study. All hypotheses were tested at 0.05 alpha level. The major finding of the study revealed that “sex related factor” was perceived by married adults in Lagos metropolis to be the highest factor responsible for extramarital affair. Gender, age, religion and educational qualification of the factors responsible for extra marital affairs while family type of the respondents did not influence their perception. Implications of the findings to guidance and counselling therefore is that counselling (Guidance services should be extended to families so as to educate parents on the effects of extramarital affair on marriage and on the children and also for counsellors to emphasize the effectiveness of “sex” in marital relationship. Based on the findings of the study, it was therefore recommended that counsellors should organize continuously on the mass media enlightenment programme on the various factors responsible for extramarital affairs so that couples can learn and work on themselves to secure their marriage.

  20. Evaluation of Railway Level Crossing Attributes on Accident Causation in Lagos, Nigeria.

    Directory of Open Access Journals (Sweden)

    Adeolu O Dina

    2017-01-01

    Full Text Available Abstract The study examines the contribution of Railway Level Crossing (RLCphysical attributes to accident occurrence using the12 major level crossings within the Lagos metropolis. The 48km single track mainline section under consideration which barely make up 1.1% of the entire narrow gauge track network of the country within a 5 year period contributed about 45% of the total National crossing accidents recorded in Nigeria. The method of investigation involved recording the individual attributes of each RLC such asgates, pedestrian traffic, car traffic light, proximity of signage to crossing, vehicular traffic as dummy variables.The regression analysis  was used to measure their effect on accidents.The result indicates gates, pedestrians and the location of signage had significant impact on accidents occurrence at level crossings within Lagos metropolis. Based on the findings, enhancement of active warning systems among other recommendations was suggested as potent counter measures for RLC accident reduction. Abstrak Penelitian menguji tingkat kontribusi atribut fisik dari perlintasan jalan kereta api terhadap kejadian kecelakaan menggunakan 12 perlintasan utama dalam kota metropolis Lagos. 48 km jalan utama tunggal menjadi pertimbangan yang hampir meningkat 1.1% dari seluruh trek sempit jaringan negara dalam jangka waktu 5 tahun menyumbang sekitar 45% dari total kecelakaan perlintasan secara Nasional di Nigeria. Metode penelitian melibatkan catatan dari masing-masing atribut RLC seperti pintu gerbang, pejalan kaki, lampu lalu lintas mobil, kedekatan tanda penyebarangan, lalu lintas kendaraan sebagai variabel dumi. Analisis regresi digunakan untuk mengukur pengaruh dari atribut terhadap kecelakaan. Hasilnya menunjukkan pintu gerbang, pejalan kaki, dan lokasi tanda perlintasan mempunyai dampak signifikan pada kecelakaan dalam kota metropolis Lagos.Berdasarkan penemuan tersebut, perbaikan dari sistem peringatan aktif disarankan sebagai upaya

  1. Murciélagos hematófagos como reservorios de la rabia

    Directory of Open Access Journals (Sweden)

    Karin Corrêa Scheffer

    Full Text Available La rabia continua siendo un desafío para las autoridades de salud pública y una limitante para la industria ganadera en América Latina. Caninos silvestres y domésticos, así como murciélagos hematófagos son las principales especies transmisoras y reservorios de la enfermedad. Actualmente, se observa variaciones en el perfil epidemiológico de la rabia, donde la especie de murciélago hematófago Desmodus rotundus se constituye en la principal especie transmisora. A lo largo del tiempo se ha acumulado conocimiento sobre la ecología, biología y comportamiento de esta especie y sobre la historia natural de la rabia, lo cual debe conducir a una continua evolución de los métodos de control poblacional de D. rotundus, prevención y técnicas de diagnóstico. Aún se desconoce la relación ecológica de esta especie con otras hematófagas y no hematófagas, y queda mucho por mejorar en los sistemas de notificación y vigilancia epidemiológica, así como crear una mayor conciencia entre los ganaderos ante el tema. La comprensión del impacto que las modificaciones ambientales inducidas por el hombre ejercen sobre la dinámica de infección del virus de la rabia en los murciélagos debe ser motivo de investigaciones posteriores. Esto requerirá la combinación de estudios de campo con modelos matemáticos y nuevas herramientas diagnósticas. La presente revisión pretende presentar los aspectos más relevantes sobre el rol de los murciélagos hematófagos como reservorios y transmisores del virus de la rabia

  2. Inventory Management Practices and Operational Performance of Flour Milling Firms in Lagos, Nigeria

    OpenAIRE

    Nsikan Efiok John; John Joseph Etim; Tommy Uduak Ime

    2015-01-01

    This study examines inventory management practices of flour milling manufacturing firms and their effects on operational performance. Five flour milling manufacturing firms in Lagos were used for this study. Structured questionnaire was the major instrument for the collection of relevant primary data while descriptive statistics such as mean and standard deviation was deployed to analyzing the data gathered. The results obtained showed that exception of the large manufacturing companies, most...

  3. Malarone treatment failure and in vitro confirmation of resistance of Plasmodium falciparum isolate from Lagos, Nigeria

    OpenAIRE

    Fivelman, Quinton L; Butcher, Geoffrey A; Adagu, Ipemida S; Warhurst, David C; Pasvol, Geoffrey

    2002-01-01

    Abstract We report the first in vitro and genetic confirmation of Malarone® (GlaxoSmithKline; atovaquone and proguanil hydrochloride) resistance in Plasmodium falciparum acquired in Africa. On presenting with malaria two weeks after returning from a 4-week visit to Lagos, Nigeria without prophylaxis, a male patient was given a standard 3-day treatment course of Malarone®. Twenty-eight days later the parasitaemia recrudesced. Parasites were cultured from the blood and the isolate (NGATV01) was...

  4. Consumers’Willingness to Pay for Safety Attributes of Bread in Lagos Metropolis, Nigeria

    OpenAIRE

    Anyam, Osemeke E.; Fashogbon, Ayodele E.; Oni, Omobowale A.

    2013-01-01

    This study examined consumer’s willingness to pay for food safety attributes in bread in Lagos metropolis. It empirically analyzed the factors driving willingness to pay for improved bread and the effect of attributes on willingness to pay and mean willingness to pay for improved bread. The data for the study using a well-structured questionnaire containing Choice Experiment (CE) questions for eliciting willingness to pay was collected from 150 respondents using a two-stage random sampling te...

  5. Evaluación de la contaminación del lago Titicaca

    OpenAIRE

    Ministerio de Agricultura; Instituto Nacional de Recursos Naturales

    1995-01-01

    Evalúa a nivel de reconocimiento, los principales problemas de contaminación del lago Titicaca, comprendido en la parte peruana, así como su área de influencia. De la misma manera, evaluar la Reserva Nacional del Titicaca. Por otro lado, se busca preparar un documento sustentatorio dirigidos a los organismos involucrados en la problemática, con la finalidad de lograr un mejor apoyo y encontrar soluciones inmediatas a los problemas.

  6. La moneda circulante en el archipiélago canario durante el siglo XVIII

    OpenAIRE

    Pedro Damián Cano Borrego

    2016-01-01

    A lo largo del siglo XVIII se produjeron en las Islas Canarias graves problemas m onetarios derivados de la moneda en circulación en el archipiélago, derivados tanto de las falsificaciones como del mantenimiento en la circulación de monedas batidas en los siglos anteriores. Asimismo, la falta de numerario menudo favoreció la entrada de moneda de vellón provincial procedente de Santo Domingo y Puerto Rico. ...

  7. Knowledge, attitude and practice towards child adoption amongst women attending infertility clinics in Lagos State, Nigeria

    Directory of Open Access Journals (Sweden)

    Adenike O. Omosun

    2011-02-01

    Full Text Available Background: Child adoption is a recommended alternative form of infertility management. Infertility is of public health importance in Nigeria and many other developing nations. This is a result of its high prevalence and especially because of its serious social implications as the African society places a passionate premium on procreation in any family setting. Objectives: The aim of this study was to determine the knowledge, attitude and practice of child adoption amongst women attending infertility clinics in teaching hospitals in Lagos State and to determine the factors that influence their attitude and practice towards it.Method: A cross-sectional descriptive design was used. Data were collected by using a structured questionnaire which was interviewer-administered. The study was conducted in the two teaching hospitals in Lagos State (LUTH [Lagos University Teaching Hospital] and LASUTH [Lagos State University Teaching Hospital] from amongst 350 women attending the gynaecological clinics. All the patients under management for infertility at the gynaecology clinics during the period of the study were interviewed.Results: Many respondents (85.7% had heard of child adoption and 59.3% of them knew the correct meaning of the term. More than half of the respondents (68.3% said that they could love an adopted child but less than half of them (33.7% were willing to consider adoption. Only 13.9% has ever adopted a child. The major reason given for their unwillingness to adopt was their desire to have their own biological child. Factors that were favourable towards child adoption were Igbo tribe identity, an age above 40 years, duration of infertility above 15 years, and knowing the correct meaning of child adoption.Conclusion: There is a poor attitude to adoption even amongst infertile couples. Interventions need to be implemented to educate the public on child adoption, to improve their attitude towards adoption and to make it more acceptable.

  8. Evaluation of Energy Use in Public Housing in Lagos, Nigeria: Prospects for Renewable Energy Sources

    OpenAIRE

    Isidore Chukwunweike Ezema; Abiodun O. Olotuah; Olabosipo I. Fagbenle

    2016-01-01

    Even though domestic energy can be from either renewable or non-renewable sources, the former is preferred because of its role in reducing both the operational energy intensity and carbon footprint. Given the positive role renewable energy plays in the energy mix, this paper examined the pattern of operational energy use with particular reference to the renewable and non-renewable energy content in medium and high density public residential buildings in Lagos, Nigeria. A survey research metho...

  9. La delegación del Poder Tributario en el Poder Ejecutivo, su regulación en el Perú y en otros países andinos

    OpenAIRE

    Urquizo Maggia, Daniel Fernando

    2009-01-01

    La presente tesis que lleva por título “La delegación del Poder Tributario en el Poder Ejecutivo, su regulación en el Perú y en otros países andinos” trata sobre la delegación legislativa tributaria regulada en los artículos 74 y 104 de la Carta del Perú aprobada en el año 1993, y en los países andinos de Bolivia, Colombia, Ecuador y Venezuela. La doctrina admite que el poder tributario ya no es atribución exclusiva del Poder Legislativo, que originariamente gozaba de esta facu...

  10. City Expansion And The Tradgedy Of The Commons: The Case Of Lagos, Nigeria

    Science.gov (United States)

    Omojola, A.

    2007-05-01

    The conflict between the short-term welfare of individuals and the long-term welfare of the society as described by Hardins (1968) always pose serious risk of degradation to the basic life support systems. This scenario is aptly demonstrated by the voracious expansion of cities especially in the developing countries and emerging economies of the world. The risk of degradation which poses serious risks to the functioning of the global commons is even more serious where the city is `evolving' with little or no planning measures to guide city growth and development. The city of Lagos, Nigeria's former capital with a population of over 9million classically exemplifies this case. This study integrates archived base data (maps and aerial photographs) and medium resolution remote sensing data to characterise the spatial evolution of the city of Lagos in over 4 decades (between 1960 and 2005). Specifically, quantitative assessment of the extent and impact of Lagos city expansion on critical ecosystems (wetlands, waterbodies natural/semi natural vegetations, and wilderness) was estimated. In addition, the impact of the loss of supporting, regulating, and cultural functions of natural ecosystems on urban flooding, city temperature/heat islands, and aesthetics in the city is also analysed. The implications of the results both for human health, and as advocacy tool for city planning and management options are also discussed.

  11. Transformative Empowerment in the Lagos State Civil Service: A Gender Policy Discourse

    Directory of Open Access Journals (Sweden)

    Felicia A.D. Oyekanmi

    2016-06-01

    Full Text Available Transformation means positive change to new values and direction. This research is concerned with the relationship between empowerment processes that are transformatory and gender equality in the workplace. Its scope includes integrating a transformatory view into women’s and men’s consciousness and autonomy over their career, education and health. This research adopted a case-study approach by using the Ministries of Education, Health, Establishment, Training and Pensions and the Civil Service Commission in Lagos State, employing a combination of qualitative and quantitative research methods as its empirical research methodology. The field work was carried out in Lagos State in the months of June and July, 2014 while the interview was in July and August, 2014. This study demonstrated that gender-blind policies disempower women and perpetuate gender inequalities in the Lagos State Civil Service. Further, it shows that the manifestation of transformatory empowerment is jeopardised by women and men's compliance with the existing expectations and inaction to bring about changes in policies and practices that are detrimental to the attainment of gender equality in the work place.

  12. Factors Influencing the Usage of Compact Fluorescent Lamps in Existing Residential Buildings in Lagos, Nigeria

    Directory of Open Access Journals (Sweden)

    Olusola Olugbemileke Johnson

    2012-01-01

    Full Text Available Nigeria as a developing nation is facing increasing demand for electricity especially in the residential areas. The use of compact fluorescent lamps (CFLs is one of the several measures towards reducing the demand. However, in Nigeria, the use of CFLs is low. The present study was designed to investigate some factors responsible for the low usage of CFLs in Lagos, Nigeria. Questionnaires were administered by hand on 984 households, selected through systematic random sampling techniques from 5 local government areas in Lagos State. The first building along the major street in each of the local government was selected randomly and every tenth building constituted the sample. A household head was surveyed in each of the building selected, and was asked to rate some factors that might have influenced the usage of CFLs. The data generated from the questionnaire were analysed using ranking method. The findings show that inability to measure the saving benefits of CFLs on electricity bills, lack of affordability and high initial cost of acquisition and installation were the most important factors which influence the use of the CFLs. The study concludes by providing some recommendations on how to achieve sustainable energy management in the Lagos and beyond through more efficient residential house lighting.

  13. Lago artificial de Martiánez Canarias – España

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    Amigó, Juan A.

    1980-06-01

    Full Text Available In this article a technical description is given of the works of the Artificial Lake of Martiánez. This work that was executed after gaining some 33,000 m2 from the sea mainly consisted of creating a small artificial lake of seawater surrounded by solariums, beaches and gardens. Inside the lake — that has an area of some 15,000 m2 — five natural islands were formed, most of which have tourist complexes built on them, consisting of: night club, restaurants, bars, terraces, etc.

    En este artículo se hace una descripción técnica de las obras del Lago Artificial de Martiánez. Esta obra, realizada tras ganar al mar unos 33.000 m2 consistió, principalmente, en la creación de un pequeño lago artificial de agua de mar rodeado de solarios, playas y jardines. En el interior del lago —cuya superficie es de unos 15.000 m2— se formaron cinco islas naturales, en la mayor de las cuales se construyó un complejo turístico que consta de: sala de fiestas, restaurantes, bares, terrazas, etc.

  14. Utilization of Oral Health Care Services by University Undergraduates in Lagos, Nigeria.

    Science.gov (United States)

    Makanjuola, J O; Uti, O G; Sofola, O O

    2015-01-01

    Data on the utilization of the available oral health facilities by university undergraduates is scarce in Nigeria. To determine the level of utilization of oral health care services and to identify the barriers to seeking treatment among University of Lagos students. A cross-sectional survey was carried out among University of Lagos undergraduates. Systematic sampling was used to select participants after randomly selecting a male and female hostel. Self-administered questionnaires were distributed to participants and collected immediately. The data was analyzed using Epi info version 6.04 software. Statistical significance was evaluated with chi square test and p-value undergraduate education, and the faculty of these students and their level of utilization of oral health care services. A high proportion of respondents that had attended the dental clinic went for dental checkup (33.6%) and extractions (30.9%).The major barriers to receiving dental treatment was a lack of perceived need for dental treatment (53.1%) followed by lack of time (27.1%), fear/anxiety (18.2%) and cost of treatment (18.2%). The low level of utilization among the undergraduates in Lagos, Nigeria shows that there is need for greater oral health awareness among the students, thereby increasing the use of oral health care facilities.

  15. Calidad del agua y sedimento en el lago de Maracaibo, estado Zulia

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    Giovany José-Bracho

    2016-03-01

    Full Text Available Se analizó el agua y el sedimento del lago de Maracaibo en seis estaciones de muestreo distribuidas de norte a sur del lago. Los parámetros físicoquímicos y ambientales fueron determinados y establecidas las relaciones entre estos y las áreas afectadas por descargas de aguas residuales, depósitos de basura, residuos industriales líquidos y sólidos, actividad petrolera y agrícola y materiales orgánicos acarreados por ríos y drenajes pluviales. Se evidenció la contaminación por incremento de utrientes(nitrógeno y fósforo en las zonas influenciadas por los ríos y vertederos de agua residual y se validó la presencia de una cuña salina por la penetración al lago de las aguas del golfo de Venezuela. Las concentraciones de metalespesados están por debajo de los límites permisibles para el agua; en los sedimentos es muy heterogénea.

  16. Community-Based Tourism and Peasant Differentiation: Considerations from an Andean case Turismo rural comunitario y diferenciación campesina: Consideraciones a partir de un caso andino

    Directory of Open Access Journals (Sweden)

    Jordi Gascón

    2011-01-01

    Full Text Available In the last years, Community-Based Tourism has created expectations in many latin american rural communities as an strategy to increase their income and to diversify the sources of this income. But it is an activity that is not free of risks. From a specific case (Amantaní Island, Titikaka Lake, Peru, the article studies one of these risks: the impact of tourism in the socio-economical communitarian cohesion.En los últimos años, el turismo rural comunitario se ha presentado como un instrumento adecuado para aumentar la renta de la población campesina y diversificar sus fuentes de ingresos. Pero se trata de una actividad económica que no está exenta de riesgos. A partir de un caso específico (la isla peruana de Amantaní, en el Lago Titicaca el artículo estudia uno de ellos: el impacto del turismo en la cohesión socioeconómica comunitaria.

  17. ASSOREAMENTO DE LAGO NA SUB-BACIA DO CÓRREGO DA CASCATA, EM BOTUCATU (SP: IMPLICAÇÕES MORFOMÉTRICAS

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    Ivalde Belluta

    2014-07-01

    Full Text Available A bacia hidrográfica é considerada uma unidade de estudo, planejamento e gerenciamento territorial para a conservação dos recursos naturais, moldada pelas condições geológicas e climáticas locais. Assim, este estudo teve por objetivo avaliar as características morfométricas da sub-bacia do Córrego da Cascata, em Botucatu (SP, e suas implicações no processo de assoreamento de um lago integrante dessa sub-bacia. A avaliação contou com índices gerados a partir de dados calculados com base cartográfica digitalizada e georreferenciada na escala 1:10.000, com utilização do AutoCAD Map 2004. Foi também utilizado o software Quantum GIS 1.8, para gerar o modelo digital de elevação (MDE e o mapa de declividades que permitiu obter a declividade média (Dm da sub-bacia. Através dos índices fator de forma (Kf, sinuosidade (Is, circularidade (Ic e coeficiente de compacidade (Kc, a sub-bacia do Córrego da Cascata apresentou forma alongada, com baixa propensão a enchentes e com escoamento rápido. Os índices densidade de drenagem (Dd e relação de relevo (Rr indicaram drenagem média e mais eficiente, o que favorece a elevada dissecação e o médio estágio erosivo. O índice coeficiente de rugosidade (Cr indicou que se trata de uma sub-bacia vocacionada à agricultura. A intervenção antrópica na linha do divisor de águas observada in loco é o principal fator do carreamento de sedimentos no lago e não apenas compromete a beleza paisagística do local como altera a vida aquática do ecossistema.

  18. Energia dos grafos

    OpenAIRE

    Collao Morales, Macarena Alessandra

    2014-01-01

    Uma das aplicações mais importantes da Teoria Espetral dos Grafos na área da Química está relacionada com a correspondência muito estreita existente entre a energia _ electron de uma molécula e os valores próprios do grafo que a representa. Esta correspondência por si só é motivação suficiente para o estudo da energia dos grafos. Nesta dissertação, para além de se introduzirem os conceitos e terminologia básicos da Teoria dos Grafos necessários para o estudo da energia (que se define como se...

  19. La Biomasa de epífitos de la angiosperma marina Posidonia oceanica (L.) Delile no es indicadora de aportes antropogénicos de nutrientes en el Parque Nacional Archipiélago de Cabrera (Islas Baleareas, Mediterráneo Occidental)

    OpenAIRE

    Terrados, Jorge; Medina Pons, Francisco Javier

    2008-01-01

    [ES] La biomasa de epífitos y el contenido en cenizas de los mismos, la biomasa foliar del haz, el contenido en nitrógeno de las hojas y la densidad de haces de la angiosperma marina Posidonia oceanica (L.) Delile se midieron en tres localidades y a dos profundidades (7 m, 17 m) del Parque Nacional Archipiélago de Cabrera (Islas Baleares, Mediterráneo Occidental) en los meses de septiembre del período 2004-2006 para evaluar el valor de la biomasa de epífitos como indicador de aportes antropog...

  20. Arquitectura y vivienda campesina en tres pueblos andinos: Yanque, Lari y Coporaque en el valle del río Colca, Arequipa

    Directory of Open Access Journals (Sweden)

    1994-01-01

    hasta el presente. Este trabajo aporta un testimonio histórico y antropológico que podría ser un modelo valioso para realizar un análisis comparativo con los pueblos en otros valles andinos. ARCHITECTURE AND PEASANT HOMES IN THREE ANDEAN VILLAGES: YANQUE, LARI AND COPORAQUE IN THE COLCA VALLEY, PERU. This essay discusses the civil architecture in Yanque, Lari and Coporaque, three of the 16 'Indians villages' founded in the Colca Valley of southern Peru in the 1570s, during the rule of Viceroy Francisco de Toledo. The first part of the article describes the general layout of the villages and their architectural characteristics. The second part enters more fully into the technology and use of villagers' homes and compares traditional 'modern' styles and building materials. Contemporary historical and anthropological literature offers little information on the subject of peasant housing in peruvian mountain villages. Hopefully, this essay will be of value for comparative research in other Andean villages.

  1. The impact of anthropogenic pollution on limnological characteristics of a subtropical highland reservoir “Lago de Guadalupe”, Mexico

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    Sepulveda-Jauregui A.

    2013-08-01

    Full Text Available “Lago de Guadalupe” is an important freshwater ecosystem located in the northern part of the metropolitan area surrounding Mexico City, under high demographic pressure. It receives approximately 15 hm3·y-1 of untreated municipal wastewater from the surrounding municipalities. In order to develop a comparative assessment of the pollution effect over the limnological characteristics of Lago de Guadalupe, this lake was characterised from February 2006 to July 2009, and the results were compared with those obtained from a non-polluted lake “Lago el Llano” located in the same drainage area. Lago de Guadalupe was hypereutrophic with anoxic conditions throughout most of the water column. In contrast, Lago el Llano was mesotrophic with high dissolved oxygen concentrations throughout the entire water column with a clinograde profile. Both reservoirs had a monomictic mixing regime. The longitudinal zonation of physicochemical and biological variables were investigated in order to better understand the processes controlling the water quality across the reservoir during its residence time. This study shows the impact of anthropogenic pollution on the limnological characteristics of a subtropical reservoir and confirms that under adequate management schemes, namely avoiding pollution and wastewater discharges, subtropical reservoirs can be prevented from developing eutrophic conditions.

  2. Avaliação do histórico de sedimentação no lago da usina Três Bocas pela medida do 137Cs e 7Be

    OpenAIRE

    Antonio Carlos Patrocinio Junior

    2010-01-01

    A erosão do solo e a sedimentação associada têm sido muito estudada como um dos mais sérios problemas ambientais. A transferência de sedimentos erodidos para ambientes lacustres leva a prejuízos, tais como, assoreamento de rios, lagos, e canais de irrigação. Uma metodologia não convencional que vem se destacando é a utilização de radionuclídeos como traçadores de sedimento para estimar as taxas de redistribuição do solo por erosão ou assoreamento. Dentre estes radionuclídeos o 137Cs, 210Pb ...

  3. Thermal structure of the Poraquê lake, Central Amazonian, Brazil = Estrutura térmica do lago Poraquê, Amazônia Central, Brasil

    Directory of Open Access Journals (Sweden)

    Fabio Marques Aprile

    2011-04-01

    Full Text Available Thermal gradient of a Central Amazonian lake was studied to establish a link between seasonal variations in the water level, temperature, suspended particulate matter (SPM and thermal stratification. Bimonthly measurements of temperature and PAR radiation were made at 0.25 m intervals from the surface to bottom from February 2004 to July 2006. Daily occurs full vertical mixing of the water column, and classic thermal stratification was not observed in the period. The effect of the winds associated to flood-pulse and the penetrativeconvection, transported the turbulent kinetic energy (TKE into the lake mixing the column of water. This phenomenon was more expressive in the rainfall seasons when is generally higher contributing to the circulation of the water. The limit of the euphotic zone ranged from 1.36 to 1.77 m in the period studied. The results of the transmission curves for the sampling sites showed that, in general, less than 0.01% of the surface light reached the bottom. The trend curve developed can facilitate the understanding of the limnological and ecological processes in lentic systems of whitewaters of the Central Amazonian.Foi estudado o gradiente térmico de um lago da Amazônia Central para estabelecer associação entre variações sazonais no nível de água, temperatura, material em suspensão e estratificação térmica. Bimestralmente, foram medidas a temperatura e a radiação luminosada superfície ao fundo do lago no período entre fevereiro de 2004 e julho de 2006. Ocorreu completa mistura vertical diária da coluna de água, não sendo observada estratificação térmica clássica no período. A energia cinética turbulenta (ECT proveniente da ação dos ventos em associação com o pulso de inundação foi responsável pela mistura da coluna de água. Esse fenômeno foi mais expressivo no período chuvoso, quando a ECT é geralmente mais alta, contribuindo para a circulação da água. A extensão da zona euf

  4. Trophic development in a volcanic lake with closed hydric balance. Lake Martignano; Evoluzione trofica di un lago vulcanico a bilancio idrico chiuso. Il lago di Martignano

    Energy Technology Data Exchange (ETDEWEB)

    Falleni, F.; Bruno, M. [Istituto Superiore di Sanita' , Rome (Italy); Marchiori, E. [Istituto Sperimentale per la Zootecnia, Monterotondo, Rome (Italy); Congestri, R. [Rome Univ. Tor Vergata, Rome (Italy); Gasperi, E.; Brambullo, M. [Azienda Sanitaria Locale A, Rome (Italy); Amadeio, R. [Comune di Campagnano, Rome (Italy)

    2000-12-01

    Martignano lake is a particular charming volcanic lake in the countryside of Rome. Recently it was included in a project of Regional Wildlife Park. The lack of immissaries and emissaries, the quite long renewal time and the very short homeothermic period of two-months in a year, make the lake susceptible of trophic evolution. The comparison between the present data and those from previous studies seems to confirm such a slow development towards this way, with a nutrient level (nitrate 0.97 mg/L; total phosphorus 11.14 {mu}g/L) and chlorophyll a concentrations (10.68 {mu}g/L), typical of mesotrophic waters. The analysis of nutrient data expressed as annual mean value in percentage from the coastal stations, suggests an under lied farming influence, and points out the need to adopt fast reduction measures, to lower the phosphorus load in acceptable levels for the lake ecosystem. [Italian] Il lago di Martignano (207 m.s.l.m) e' situato nell'Italia centrale, a 35 Km a nord di Roma. I laghi di origine vulcanica rappresentano una tipologia relativamente rara rispetto all'insieme dei corpi d'acqua componenti la limnologia classica. La loro esistenza si determina in regioni con passata o attuale pronunciata attivita' tettonica. La mancanza di immissari ed emissari che caratterizza questo invaso rende particolarmente vulnerabile il suo livello trofico da parte delle contaminazioni da insediamenti urbani ed agricoli circostanti. Ai fini di valutare l'attuale velocita' di ricambio idrico del lago, il suo livello trofico e la conseguente capacita' di automantenimento di un basso livello trofico delle acque, e' stato pianificato il presente studio articolato in 13 mesi di campionamento. Si e' constatato che il valore medio annuale della clorofilla a, 10.68 {mu}g/L, mentre la presenza dei nitrati si aggira sul valore medio di 0.97 mg/L, cio' permette di ipotizzare l'origine agricola della maggior parte dei nutrienti del

  5. O ecologismo dos pobres

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    Juan Martinez ALIER

    1997-12-01

    Full Text Available O ecologísmo tem colocado em cheque as leis capitalistas de mercado, principalmente na sua fase globalizada, devido à apropriação e exploração inconsequente dos recursos naturais. Ao mesmo tempo tem apontado que o meio ambiente não se reduz ao tratamento somente cientifico da natureza. O presente artigo ressalta aspectos importantes do ecologísmo como a participação das mulheres, o marxismo, o neo-narodnismo, etc. e é rico em exemplos de problemas ambientais decorrentes das relações de produção. O ecologísmo dos pobres é apontado como uma perspectiva necessária às lutas ambientais no Terceiro Mundo.

  6. Age and extent of the Ilopango TBJ Tephra inferred from a Holocene chronostratigraphic reference section, Lago De Yojoa, Honduras

    Science.gov (United States)

    Mehringer, Peter J.; Sarna-Wojcicki, Andrei M.; Wollwage, Lance K.; Sheets, Payson

    2005-03-01

    Eruption of central El Salvador's Ilopango Volcano early in the first millennium A.D. caused death, cultural devastation, and exodus of southern Mesoamericans. It also left a time-stratigraphic marker in western El Salvador and adjacent Guatemala—the Ilopango Tierra Blanca Joven, or TBJ tephra. Mineral suites and major element abundances identify a silicic volcanic ash in cores from Lago de Yojoa, Honduras, as Ilopango TBJ. This extends its reported range more than 150 km to the northeast. Analyses of glass from the TBJ tephra from the Chalchuapa archaeological site, El Salvador, and from Lago de Yojoa, Honduras, establish the first major element reference fingerprint for the TBJ tephra. The Lago de Yojoa cores also hold two previously undated trachyandesitic tephra layers originating from the nearby Lake Yojoa Volcanic Field. One fell shortly before 11,000 14C yr B.P. and the other about 8600 14C yr B.P.

  7. An Assessment of Internet Uses, Practices, and Barriers for Professional Development by Agricultural Science Teachers in Lagos State

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    Olatomide Waheed Olowa

    2012-01-01

    Full Text Available The paper reports a study carried out on the utilisation of the Internet by agricultural science teachers in Lagos state focusing on uses, practices, and barriers. A questionnaire was developed based on literature and was administered to 300 agricultural science teachers in Lagos schools. 275 questionnaires properly completed were analyzed. Data reveal that 130 teachers are using the Internet for teaching agricultural science in classrooms as well as for various activities that enhance their professional development. Nevertheless, it was found that agricultural science teachers in Lagos State have not fully utilised the Internet because of barriers related to time factor, accessibility, and facilities. It is suggested that for the proliferation of Internet practices, there needs to be an increase in funding for technology, an introduction of computer/technology education, a provision of pedagogical training for teachers, and a provision of administrational support.

  8. Aspectos relevantes de la cuenca del lago de Valencia aplicando la metodología del pensamiento complejo

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    María de los Ángeles Gregori

    2014-12-01

    Full Text Available La dinámica de la cuenca del lago de Valencia situada entre los Estados Aragua y Carabobo, en la región norte costera de Venezuela está afectada por elementos climáticos, tectónicos, geomorfolóficos, la propia dinámica fluvial de los ríos que conforman la cuenca y por factores antrópicos, entre los cuales destacan el modelo de apropiación de los recursos naturales, la ocupación del territorio e incluso se pueden considerar las visiones mecanicistas y cortoplacista dadas en las "soluciones" que se implementaron para afrontar el crecimiento y decrecimiento del lago. Los principios del pensamiento complejo constituyen una estrategia metodológica para el abordaje multimensional y multiescalar sobre el estudio de la cuenca del lago Valencia.

  9. Age and extent of the Ilopango TBJ Tephra inferred from a Holocene chronostratigraphic reference section, Lago De Yojoa, Honduras

    Science.gov (United States)

    Mehringer, P.J.; Sarna-Wojcicki, A. M.; Wollwage, L.K.; Sheets, P.

    2005-01-01

    Eruption of central El Salvador's Ilopango Volcano early in the first millennium A.D. caused death, cultural devastation, and exodus of southern Mesoamericans. It also left a time-stratigraphic marker in western El Salvador and adjacent Guatemala - the Ilopango Tierra Blanca Joven, or TBJ tephra. Mineral suites and major element abundances identify a silicic volcanic ash in cores from Lago de Yojoa, Honduras, as Ilopango TBJ. This extends its reported range more than 150 km to the northeast. Analyses of glass from the TBJ tephra from the Chalchuapa archaeological site, El Salvador, and from Lago de Yojoa, Honduras, establish the first major element reference fingerprint for the TBJ tephra. The Lago de Yojoa cores also hold two previously undated trachyandesitic tephra layers originating from the nearby Lake Yojoa Volcanic Field. One fell shortly before 11,000 14C yr B.P. and the other about 8600 14C yr B.P. ?? 2004 University of Washington. All rights reserved.

  10. Modelado matemático del comportamiento mecánico de un fragmento de cartílago articular

    OpenAIRE

    LANDÍNEZ, NANCY STELLA; VANEGAS, JUAN CARLOS; GARZÓN, DIEGO ALEXANDER

    2009-01-01

    El cartílago articular es un material biológico poroelástico que permite la distribución de las cargas mecánicas y el movimiento de las articulaciones. Como material bifásico, en presencia de carga, el cartílago articular deforma su matriz sólida y modifica la presión hidrostática del fluido en su interior. El objetivo del presente trabajo es implementar numéricamente un modelo matemático que predice el comportamiento mecánico del cartílago articular teniendo en cuenta la dualidad entre la ma...

  11. Especies del Fitoplancton Presentes en el Lago Tonatiahua, Morelos, México Especies del Fitoplancton Presentes en el Lago Tonatiahua, Morelos, México

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    Roberto Trejo Albarrán

    2012-02-01

    Full Text Available Se llevó a cabo un reconocimiento de las especies del fitoplancton del Lago Tonatiahua, Morelos, México, registrándose un total de 24 especies, incluidas en las siguientes clases: Chlorophyceae con 4 especies, Chlamydophyceae con 3 especies, Cyanophyceae con 3 especies, Euglenophyceae con 2 especies, Dinophyceae con 1 especie y Bacillariophyceae con 11, se da una descripción de cada una de ellas y la distribución que presentaron en la columna de agua durante el estudio. An examination of the phytoplankton species from the Tonatiahua lake of Morelos, Mexico was carried out. 24species were examinated. They were included in the following classification: Chlorophyceae with 4species, Chlamydophyceae with 3species, Cyanophyceae with 3 species, Euglenophyceae with 2 species, Dinophyceae with 1 species, Bacillariophyceae with 11 species, a description of each are and its distribution in a water column during the test are presented in this paper.

  12. Componentes y dinámicas internas de un Sistema de Innovación Regional: la Región de Los Lagos (Chile

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    Guillermo Díaz L.

    2012-01-01

    Full Text Available Los estudios de territorios reconocen ahora que la innovación y los avances tecnológicos son un importante factor de desarrollo. Por ejemplo, recurriendo a teorías de cambio tecnológico y aprendizaje colectivo, el modelo Sistemas de Innovación Regional (SIR utiliza un enfoque sistémico sobre la innovación, subrayando la importancia de variables geográficas, institucionales, económicas y culturales. Este artículo analiza y aplica el sir a la Región de Los Lagos, en Chile, y pone especial atención a dos aspectos fundamentales: los componentes y las dinámicas internas de este modelo de innovación territorial, analizando las condiciones sobre las cuales la innovación tiene lugar y la percepción de importantes actores regionales. Al aplicar el modelo de SI R a un país en desarrollo como Chile y dar especial atención a las condiciones de innovación y la percepción de actores regionales, apunta a tratar un tema poco estudiado.

  13. O Jardim dos Sonhos

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    RAUL CÂNOVAS

    2010-06-01

    Full Text Available O jardim dos sonhos sempre foi um ideal dos homens. No Antigo Egito, já se falava em um jardim sempre verde para onde as pessoas de bom coração iam após a morte. E na mitologia grega, um lindo jardim era palco das festas bucólicas dos deuses. As grandes religiões também citavam jardins como paraísos, como o Jardim do Éden. Neste artigo, Raul Cânovas nos leva a refletir sobre o sentido de um “jardim perfeito”, sem tratar a perfeição como apenas plástica e estruturada com exatidão, mas referindo-se a um jardim que nos inspire e emocione, emancipado de modismos passageiros. O paisagista também nos alerta sobre as condições mutáveis de um jardim, que nunca está finalizado. O paisagismo não é apenas técnica; é também sensibilidade, utilidade, sustentabilidade e equilíbrio das forças da natureza.

  14. Medication administration errors among paediatric nurses in Lagos public hospitals: an opinion survey.

    Science.gov (United States)

    Oshikoya, K A; Oreagba, I A; Ogunleye, O O; Senbanjo, I O; MacEbong, G L; Olayemi, S O

    2013-01-01

    There is paucity of data on paediatric medicine administration error (MAE) in developing countries. This study aimed to investigate the experience of MAEs among paediatric nurses working in public hospitals in Lagos, Nigeria. A confidential, self-reporting questionnaire was the instrument for the study. Public hospitals in Lagos, Nigeria with established paediatric services and departments. Paediatric nurses. The questionnaire was administered to 75 nurses working in public hospitals in Lagos to obtain information on the experience of medication errors during their entire career, as well as to know their views on the nature of MAEs and the contributing factors. Fifty nurses responded to give a response rate of 66.7%. All the participants were females with a mean ± s.d age of 35.3 ± 10.7 years. Thirty two (64%) had committed at least one medication error over the course of their career. Wrong dose error (24; 48%) and wrong timing of medicine administration (20; 40%) were the MAEs frequently committed by the participants. The consequences of the errors included shock (23; 46%), restlessness (21; 42%), disorientation (11; 22%), and respiratory depression (10; 20%). Increased workload (26; 52%) and not double checking medicine doses (12; 24%) were the major factors the nurses perceived to be contributing to MAEs. Only 15(30%) nurses had reported MAEs to their superiors. Fear of intimidation, retribution or being punished (11; 22%) and lack of policies in place to report errors (13; 26%) were the two major barriers to reporting MAEs. Half (50%) of the nurses indicated that policies were available in their work places to prevent medication errors. Medication administration errors were frequently committed by the participants and resulted in some inconsequential effects, morbidity and deaths. Appropriate measures should be implemented to prevent future occurrences of MAEs.

  15. The last 7 millennia of vegetation and climate changes at Lago di Pergusa (central Sicily, Italy

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    L. Sadori

    2013-08-01

    Full Text Available The aim of this study is to investigate climate changes and human activities under the lens of palynology. Based on a new high-resolution pollen sequence (PG2 from Lago di Pergusa (667 m a.s.l., central Sicily, Italy covering the last 6700 yr, we propose a reconstruction of climate and landscape changes over the recent past in central Sicily. Compared to former studies from Lago di Pergusa (Sadori and Narcisi, 2001, this work provides a reconstruction of the evolution of vegetation and climate over the last millennia in central Sicily, indeed completing previous results with new pollen data, which is particularly detailed on the last 3000 yr. Joint actions of increasing dryness, climate oscillations, and human impact shaped the landscape of this privileged site. Lago di Pergusa, besides being the main inland lake of Sicily, is very sensitive to climate change and its territory was inhabited and exploited continuously since the Palaeolithic. The lake sediments turned out to be a good observatory for natural phenomena that occurred in the last thousands of years. Results of the pollen-based study are integrated with changes in magnetic susceptibility and a tephra layer characterization. The tephra layer was shown to be related to the Sicanians' event, radiocarbon dated at 3055 ± 75 yr BP (Sadori and Narcisi, 2001. We performed palaeoclimate reconstructions by MAT (Modern Analogues Technique and WAPLS (Weighted Average Partial Least Square. Palaeoclimate reconstructions based on the core show important climate fluctuations throughout the Holocene. Climate reconstruction points out four phases of cooling and enhanced wetness in the last three millennia (2600–2000, 1650–1100, 850–550, 400–200 cal BP, corresponding to the periods between 650–50 BC, and 300–850, 1100–1400, 1550–1750 AD, respectively. This appears to be the evidence of local responses to global climate oscillations during the recent past.

  16. Recovery and recycling practices in municipal solid waste management in Lagos, Nigeria

    International Nuclear Information System (INIS)

    Kofoworola, O.F.

    2007-01-01

    The population of Lagos, the largest city in Nigeria, increased seven times from 1950 to 1980 with a current population of over 10 million inhabitants. The majority of the city's residents are poor. The residents make a heavy demand on resources and, at the same time, generate large quantities of solid waste. Approximately 4 million tonnes of municipal solid waste (MSW) is generated annually in the city, including approximately 0.5 million of untreated industrial waste. This is approximately 1.1 kg/cap/day. Efforts by the various waste management agencies set up by the state government to keep its streets and neighborhoods clean have achieved only minimal success. This is because more than half of these wastes are left uncollected from the streets and the various locations due to the inadequacy and inefficiency of the waste management system. Whilst the benefits of proper solid waste management (SWM), such as increased revenues for municipal bodies, higher productivity rate, improved sanitation standards and better health conditions, cannot be overemphasized, it is important that there is a reduction in the quantity of recoverable materials in residential and commercial waste streams to minimize the problem of MSW disposal. This paper examines the status of recovery and recycling in current waste management practice in Lagos, Nigeria. Existing recovery and recycling patterns, recovery and recycling technologies, approaches to materials recycling, and the types of materials recovered from MSW are reviewed. Based on these, strategies for improving recovery and recycling practices in the management of MSW in Lagos, Nigeria are suggested

  17. Dam failure analysis for the Lago de Matrullas Dam, Orocovis, Puerto Rico

    Science.gov (United States)

    Torres-Sierra, Heriberto; Gómez-Fragoso, Julieta

    2015-01-01

    The U.S. Geological Survey, in cooperation with the Puerto Rico Electric Power Authority, completed a hydrologic and hydraulic study to assess the potential hazard to human life and property associated with the hypothetical failure of the Lago de Matrullas Dam, located within the headwaters of the Río Grande de Manatí. The hydrologic study yielded outflow hydrographs and peak discharges for Lago de Matrullas and other subbasins in the Río Grande de Manatí hydrographic basin for three extreme rainfall events: (1) a 6-hour probable maximum precipitation (PMP) event, (2) a 24-hour PMP event, and (3) a 100-year-recurrence, 24-hour rainfall event. The hydraulic study simulated the hypothetical dam failure of Lago de Matrullas using hypothetical flood hydrographs generated from the hydrologic study and selected dam breach parameters. The flood wave resulting from the failure was downstream-routed through the lower reaches of the Río Matrullas, the Río Toro Negro, and the Río Grande de Manatí for determination of water-surface profiles developed from the event-based hydrologic scenarios and “sunny day” (no precipitation) conditions. The Hydrologic Modeling System (HEC–HMS) and the River Analysis System (HEC–RAS) computer programs, developed by the Hydrologic Engineering Center (HEC) of the U.S. Army Corps of Engineers, were used for the hydrologic and hydraulic modeling, respectively. The flow routing in the hydraulic analyses was performed using the unsteady-state flow module available in the HEC–RAS model.

  18. Electricity supply efficiency and organizational growth and profitability in Lagos, Nigeria

    Science.gov (United States)

    Adeleke, Adedeji Tajudeen

    A modern and efficient infrastructure is a basic necessity for economic development and integration into the global economy. The specific problem was the inadequate and unreliable supply of electricity to manufacturing corporations in Lagos, Nigeria. The purpose of the current quantitative correlational research study was to examine if there was a correlation between electricity supply efficiency and organizational growth and profitability in manufacturing corporations in Lagos, Nigeria. The population of the current correlational research study involved 28 out of 34 manufacturing corporations from various industrial sectors in Lagos, Nigeria, that are listed and traded on the Nigerian Stock Exchange. Spearman rho correlations were used to assess the relationships between independent variables of electricity supply efficiency levels and the dependent variables of organizational growth and profitability. The result of the correlational analysis of the data revealed that there was a statistically significant, strong positive correlation between the Average Gross Income (1998-2007) and Average Actual Electricity supply efficiency level (1998-2007), rho = 0.57; p = 0.002. A statistically significant, strong positive correlation was found between the Average Balance Sheet Size (1998-2007) and Average Actual Electricity Supply Efficiency Level (1998-2007), rho = 0.54; p = 0.003. A statistically significant, strong positive correlation between the Average Profit After Tax (1998-2007) and Average Actual Electricity Supply Efficiency Level (1998-2007), rho = 0.60; p = 0.001, was found. No statistically significant correlation between the Average Return on Investment (1998-2007) and Average Actual Electricity supply efficiency level (1998-2007), rho = 0.19; p = 0.33, was discovered.

  19. Analysis of the Re-emergence and Occurrence of Cholera in Lagos State, Nigeria

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    Babatimehin Oyekanmi Isaac

    2017-06-01

    Full Text Available This paper analysed the factors responsible for the re-emergence of cholera and predicted the future occurrence of Cholera in Lagos State, Nigeria using factor analysis, multiple linear regression analysis and a cellular automata model for the prediction. The study revealed six Local Government Areas (LGAs under very high threat, nine under low threat, and Surulere and some parts of Amuwo Odofin under medium threat in the near future. These areas have an average population of 200,000 people each with the total tending towards millions of people, all under threat of cholera occurring and re-emerging in their communities. The factors relating to the re-emergence of the disease were discovered to be environmental (rainfall, R2=0.017, P0.05; socio-economic (household size R2=0.816, P>0.05; income, R2=0.880, P>0.05; and education, R2=0.827, P>0.05. The Cellular Automata Markov Prediction model showed that by 2016, Lagos State will experience 79 cholera cases which will increase to 143 in 2020. This prediction model revealed that Ikorodu will record 40 cases, Apapa 12, Ojo 5, Mushin 3, while Amuwo-Odofin, Badagry and Ajeromi-Ifelodun LGAs will each record 2 cases between 2011 and 2016. The study concludes that there is a cholera threat in Lagos State and the factors of vulnerability that predispose people to the disease must be tackled over time and space for effective prevention, control and management of the disease.

  20. Holocene climate variability and anthropogenic impacts from Lago Paixban, a perennial wetland in Peten, Guatemala

    Science.gov (United States)

    Wahl, David B.; Hansen, Richard D.; Byrne, Roger; Anderson, Lysanna; Schreiner, T.

    2016-01-01

    Analyses of an ~ 6 m sediment core from Lago Paixban in Peten, Guatemala, document the complex evolution of a perennial wetland over the last 10,300 years. The basal sediment is comprised of alluvial/colluvial fill deposited in the early Holocene. The absence of pollen and gastropods in the basal sediments suggests intermittently dry conditions until ~ 9000 cal yr. BP (henceforth BP) when the basin began to hold water perennially. Lowland tropical forest taxa dominated the local vegetation at this time. A distinct band of carbonate dating to ~ 8200 BP suggests regionally dry conditions, possibly associated with the 8.2 ka event. Wetter conditions during the Holocene Thermal Maximum are indicated by evidence of a raised water level and an open water lake. The timing of this interval coincides with strengthening of the Central American Monsoon. An abrupt change at 5500 BP involved the development of a sawgrass marsh and onset of peat deposition. The lowest recorded water levels date to 5500–4500 BP. Pollen, isotope, geochemical, and sedimentological data indicate that the coring site was near the edge of the marsh during this period. A rise in the water table after 4500 BP persisted until around 3500 BP. Clay marl deposition from 3500 to 210 BP corresponds to the period of Maya settlement. An increase in δ13C, the presence of Zea pollen, and a reduction in the percentage of forest taxa pollen indicate agricultural activity at this time. In contrast to several nearby paleoenvironmental studies, proxy evidence from Lago Paixban indicates human presence through the Classic/Postclassic period transition (~ 1000 BP) and persisting until the arrival of Europeans. Cessation of human activity around 210 BP resulted in local afforestation and the re-establishment of the current sawgrass marsh at Lago Paixban.

  1. Second-hand smoke exposure among workers of restaurants, bars, and nightclubs in Lagos State

    Directory of Open Access Journals (Sweden)

    Oluwakemi Ololade Odukoya

    2017-01-01

    Full Text Available Background: The Lagos State Regulation of Smoking Law was passed in February 2014 and stipulates the total restriction of tobacco smoking in listed public places. Workers in hospitality venues are at a high risk of exposure to second-hand smoke (SHS. Therefore, their awareness of the health risks, attitudes toward SHS and their reported levels of exposure may play a crucial role in developing an effective monitoring, implementation, and enforcement mechanism. Methods: We conducted a cross-sectional, descriptive study among workers in restaurants, bars, and nightclubs registered with the Lagos State Ministry of Tourism in the second quarter of the year 2014. We used a multistage sampling technique to select one respondent each from the 300 centers randomly selected to participate in the survey. Data were collected using a modified version of the World Health Organization Global tobacco surveillance system tools. Univariate and bivariate analysis were carried out. Exposure to SHS in the workplace and in other public places was treated as the outcome variable in the bivariate analysis. Results: Majority (75.3% of the respondents were aged between 21 and 40 years with a mean age of 27.7 + 8.6 years. Many (66% were waiters/waitresses and spent more than 8 h a day. Most (60.6% of the venues were indoor only establishments, and 26.8% had no form of smoking restrictions. Majority of the respondents were exposed to SHS at work, and this was higher in bars and nightclubs. A bivariate analysis of results showed that workers were exposed to SHS at work irrespective of workplace smoking restrictions or respondents smoking status. Conclusion: Our study demonstrates that second-hand smoke exposure is very high (65% in smokers; 65.6% in nonsmokers among workers in restaurants, bars, and nightclubs in Lagos State. We are therefore of the opinion that strict enforcement of law would ensure the protection of these workers.

  2. Critical factors that impact on the efficiency of the Lagos seaports

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    Francis Ojadi

    2015-07-01

    Full Text Available Background: Since the past two decades, the Lagos seaports have experienced vessel and storage yard cargo congestion, resulting in dwell times of about 30 days for containerised imports and high trade logistics costs. Objectives: The purpose of this study was to identify the critical factors that impact the operational efficiency of the Lagos seaports with a view to improving liner trade activities. Method: The study adopted an operational-based approach to understand the dynamics of the various interfaces of the port value chain. The research paradigm adopted for the study was therefore a combination of constructivism and post-positivism paradigms, which entailed the exploration and understanding of the various stakeholders in the port value chain. The epistemology of the research relied on the use of the exploratory sequential mixed method research technique (i.e. the qualitative approach followed by the quantitative approach at the operational level of port operations. Results: The result of the research showed that significant challenges exist and that some of these challenges cut across all functions of port operations. Challenges are experienced in the areas of corruption, trade fraud, transport infrastructure deficits, the absence of a supply chain culture and shortcomings in the execution of the ‘contract of customs’. Additionally, these factors include the deficiencies in services and facilities provided by state agencies and government-appointed service providers and private sector companies such as truckers, inland container depots, Inland Container Depots (ICDs and terminal operators. Conclusion: Specific recommendations are made to address the issues identified which, if implemented, could significantly address the current inefficiencies observed in the Lagos seaport’s operations.

  3. Lake-level variations and tides in Lago Argentino, Patagonia: insights from pressure tide gauge records

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    Andreas Richter

    2015-08-01

    Full Text Available Based on precise pressure tide gauge observations lake-level records are derived for two sites in Lago Argentino, southern Patagonia, of 2.5 and 1 years of duration. Applying the tools of time series analysis, the principal processes affecting the lake level are identified and quantified. Lake-level changes reflecting variations in lake volume are dominated by a seasonal cycle of 1.2 m in amplitude. Lake-volume changes occur in addition with a daily period in response to melt water influx from surrounding glaciers. Sporadic lake-volume jumps are caused by bursting of the ice dam of Perito Moreno glacier. Water movements in Lago Argentino are dominated by surface seiches reaching 20 cm in amplitude. Lake tides reach a maximum amplitude of 3 mm. The comparison of the tidal signal extracted from the lake-level observations with a model composed of the contributions of body tide and ocean tidal loading indicates a phase shift of 23° which is most likely explained by an 1 hour phase lag of global ocean tide models in the region of the highly fragmented Pacific coast. The comparison of the obtained results with those of a previous study of Lago Fagnano, Tierra del Fuego, allows to relate differences in the hydrological and hydrodynamic processes between both lakes to morphological properties. This leads to a tentative prediction of the lake-level variability to be expected from other great Patagonian lakes. The presented geodetic results shall serve as a starting point for a detailed limnological investigation of these aquatic ecosystems.

  4. Urban malaria treatment behaviour in the context of low levels of malaria transmission in Lagos, Nigeria.

    Science.gov (United States)

    Brieger, W R; Sesay, H R; Adesina, H; Mosanya, M E; Ogunlade, P B; Ayodele, J O; Orisasona, S A

    2001-01-01

    Urban malaria in West Africa is not well documented. While rapid urbanisation may create environmental conditions that favour mosquito breeding, urban pollution may inhibit the growth of Anopheles species. In 1996, the Basic Support for Institutionalizing Child Survival (BASICS) Project of the U.S. Agency for International Development (USAID) started building urban community health coalitions in Lagos, Nigeria, to empower communities to provide prompt treatment and appropriate prevention for major causes of childhood morbidity and mortality, including malaria, diarrhoeal disease, acute respiratory infections and vaccine preventable diseases. Intervention against malaria was predicated on national policies that assumed Nigeria was holo-endemic for malaria and that prompt treatment of febrile illness with anti-malarial drugs was an appropriate action. At the suggestion and with the assistance of another USAID programme, the Environmental Health Project (EHP), BASICS embarked on a rapid assessment of the epidemiological, entomological and sociological situation of malaria transmission and case management in three Lagos communities. During April and May 1998, blood film investigation of 916 children between the ages of 6 months and 5 years yielded a parasite prevalence rate of 0.9%. Night knockdown collections of mosquitoes in rooms yielded only C. quinquefasciatus and A. aegypti. The same results were obtained for night landing collections on human bait. Very low densities of A. gambiae larvae were found in breeding sites in Lagos Island (0.7) and Ajegunle (0.3). In contrast, community members, during focus group discussion identified malaria, in it various culturally defined forms, as a major health problem. Among the children examined clinically, 186 (20.3%) reported an illness, which they called "malaria" in the previous two weeks, and 180 had sought treatment for this illness. Data obtained from 303 shops in the area documented that a minimum of US dollars 4

  5. Estudio hidroquímico e isotópico del Lago Titicaca: Informe final: Proyecto RLA/8/022

    OpenAIRE

    Rojas, Rubén; Paredes, Marco; Campos, Julio

    2002-01-01

    Con el fin de controlar y velar por la conservación y uso adecuado de los múltiples recursos del sistema, que son fundamentalmente hídrico e hidrobiológico, sin alterar negativamente la ecología de la región, los gobiernos del Perú y Bolivia solicitaron la cooperación de la Comunidad Económica Europea (CEE) para llevar a cabo los estudios correspondientes y se constituyeron como entidades contrapartes en la Autoridad Autónoma Binacional del Lago Titicaca (ALT) y el Proyecto Especial Lago Titi...

  6. Activity and population characteristics of Andean Condors in southern Chile Actividad y características poblacionales de los Cóndores Andinos en el sur de Chile

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    RONALD J. SARNO

    2000-03-01

    Full Text Available Data were collected on general activity patterns and population characteristics of free-ranging Andean Condors Vultur gryphus in Torres del Paine National Park, Chile from July 1992 to June 1994 during 3,680 h of observation. Seasonal differences were evident in relative abundance and activity patterns. The mean number of condors sighted/ observation significantly higher in fall-winter than in spring-summer. There was a significant decrease from spring-summer to fall-winter in the percentage of observations during which we sighted solitary condors and a significant increase in the number of groups of condors. In addition, mean monthly maximum group size was significantly larger in fall-winter than spring-summer. The sex ratio (males:females of juveniles was significantly skewed in favor of females, and that of adults was significantly skewed in favor of males. The significantly different adult:juvenile ratio of condors visiting the park could have resulted from differences in distribution and habitat use and/or low breeding rates. Differential juvenile mortality and dispersal could also have produced skewed age and sex ratios, but more research is needed. Condor activity seemed related to wind speed. The greatest proportion of condors was observed flying in calm and low winds and less frequently in moderate to very strong winds. Temperature seemed to have an important effect on aerial activity because the greatest proportion of condors was sighted flying and soaring on warm days. Temperature and wind speed were weakly correlated.Se recolectaron datos sobre los patrones generales de actividad y caractersticas de la población del Cóndor Andino Vultur gryphus. El estudio se realizó en el Parque Nacional Torres del Paine, Chile, entre julio 1992 y junio de 1994, totalizando 3680 horas de observación. Durante el estudio fueron evidentes diferencias estacionales en los patrones de actividad y abundancia relativa de estas aves. El numero promedio

  7. Influence of social media on business (A case study of Lagos, Nigeria)

    OpenAIRE

    Imran, Shakir

    2014-01-01

    Since the advent of social media has bring a new landscape and present a new grid of personal connections, businesses have been seeing a tremendous opportunities and are intense to draw from (social media or the trend). Many studies has been conducted stating the reasons to draw from social media and in other to help companies to gain a better position in the transition, The main reason for writing this research is to analyze the influence of social media on Lagos Nigerian businesses. Th...

  8. Trend of childhood TB case notification in Lagos, Nigeria, 2011–2014

    OpenAIRE

    Daniel, Olusoji James; Adejumo, Olusola Adedeji; Abdur-Razzaq, Husseine A.; Ebunoluwa, Jaiyesimi O.

    2015-01-01

    Background: Childhood tuberculosis (TB) has been neglected by national TB programs in sub-Saharan Africa because of the emphasis on adult smear-positive TB cases. About 80,000 HIV children die from TB, and over 550,000 childhood TB cases occur annually, representing 6% of the global TB burden, making TB an important cause of morbidity and mortality in children. Thus, this study assessed the trend of childhood TB cases notified in Lagos, Nigeria from 2011 to 2014. Methods: Retrospective da...

  9. Crisis ambiental en el lago de Chapala y el abastecimiento para Guadalajara

    OpenAIRE

    Juan M. Durán J.; Alicia Torres R

    2003-01-01

    Este artículo se centra en la crisis ambiental que genera el modelo urbano- industrial en el uso del agua por una sociedad demandante de este recurso directa o indirectamente para sus servicios, así como, por una agricultura subordinada al eje industrial que se ha generado a lo largo de la cuenca, en particular entre el lago de Chapala y Guadalajara, como resultado de las políticas y de las relaciones de poder de los actores sociales que intervienen en el uso, control y distribución ...

  10. Tratamiento no protésico de las lesiones del cartílago articular

    OpenAIRE

    Carranza Bencano, A.

    1997-01-01

    Las alteraciones del cartílago articular constituyen un gran reto planteado a la Cirugía Ortopédica actual, por el aumento de traumatismos articulares y ante el incremento del porvenir de la vida de la población con el consiguiente envejecimiento del aparato locomotor y el desarrollo de artrosis degenerativas. Los éxitos de las prótesis articulares quedan ensombrecidos por su porvenir incierto en largos períodos de seguimiento. Por ello, en este artículo se revisa la situación actual de los m...

  11. Aislamiento de virus rábico de murciélagos en colombia, s. a.

    OpenAIRE

    Morales Alarcón, A.; Osorno-Mesa, E.; Bernal Cubides, C.; Lleras Pizarro, A.

    2012-01-01

    Se intentó el aislamiento de virus rábico en 919 murciélagos, más 83 sin clasificar que no se incluyen en el cuadro, insectívoros y frugívoros procedentes de 3 zonas de Colombia. Las especies estudiadas fueron las siguientes: Corollia perspicillata, Myotis nigricans, Lasiurus ega, Artibeus Lituratus palmarum, Vampyrops helleri, Trachops cirrhosus cirrhosus, Glossophaga longirostris, Saccopteryx bilineata, Molossus molossus, Peropteryx kappleri, Phyllostomus hastatus.  No se encontró ningún ej...

  12. Reconstituição paleoambiental do Lago Santa Ninha, Várzea do Lago Grande de Curuai, Pará, Brasil Paleoenvironmental reconstruction of an Amazon floodplain lake, Lago Santa Ninha, Varzea do Lago Grande de Curuai, Pará, Brasil

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    Luciane Silva Moreira

    2009-09-01

    Full Text Available Este estudo teve por objetivo reconstituir as mudanças paleoambientais e paleohidrológicas no baixo Amazonas. Um testemunho de sedimento foi coletado no Lago Santa Ninha, na várzea do Lago Grande de Curuai, localizada na margem direita do Rio Amazonas a aproximadamente 850 km da foz. O teor de água, a granulometria, as datações com carbono 14, os conteúdos de carbono orgânico e nitrogênio total e o isótopo estável do carbono (δ13C foram utilizados para determinar os processos sedimentares a que o meio esteve submetido. O testemunho estudado possui 270 cm de comprimento que corresponde a um período de 5600 anos cal AP. Este estudo colocou em evidência diferentes ambientes sedimentares: na base do testemunho até 4900 anos cal AP há uma vegetação inundada que foi gradualmente substituida por bancos de gramíneas e por uma planicie com secas sazonais em 4000 anos cal AP até alcançar, desde 600 anos AP as condições atuais deste lago. Estas alterações podem ter ocorrido em decorrência de mudanças no ciclo hidrológico do Rio Amazonas que, por sua vez, também são reflexos de alterações climáticas.Physical, chemical and geochemical characteristics of lacustrine sediments were studied to reconstruct paleohydrologyical control on sedimentation in an Amazonian floodplain. A core was collected at the Lago Grande de Curuai floodplain, in the Santa Ninha Lake, located on the right margin of the Amazon River at 850 km of the estuary. Water content, granulometry, radiocarbon dating, organic carbon, nitrogen content and δ13C were used to characterize the sedimentary processes. The core is 270 cm-long which corresponds to 5600 cal years BP. The core points out different sedimentary environments: flooded vegetation at the base of the core till 4900 cal years BP is substituted by grass banks changing to a floodplain encompassing prolonged annual dryness at 4000 cal years BP. Since 600 cal years BP, the present day Varzea Lake

  13. Almacenamiento de carbono en especies predominantes de flora en el lago Chinchaycocha

    OpenAIRE

    Ronald Medrano Yanqui; Liz Chupan Minaya; Miguel Vila Balbín

    2012-01-01

    Objetivos: Evaluar la cantidad de carbono que almacenan las especies predominantes de flora del lago Chinchaycocha. Métodos: La investigación fue de tipo básica, de corte transversal y con un nivel exploratorio-comparativo. El estudio se hizo en tres ecosistemas dentro del humedal: bofedal, pajonal y totoral, las áreas fueron identificadas con ayuda de imágenes satelitales Landsat. El procedimiento estuvo basado en la recolección de muestras divididas en: biomasa aérea, biomasa radicular y mu...

  14. Malarone treatment failure and in vitro confirmation of resistance of Plasmodium falciparum isolate from Lagos, Nigeria.

    Science.gov (United States)

    Fivelman, Quinton L; Butcher, Geoffrey A; Adagu, Ipemida S; Warhurst, David C; Pasvol, Geoffrey

    2002-02-08

    We report the first in vitro and genetic confirmation of Malarone (GlaxoSmithKline; atovaquone and proguanil hydrochloride) resistance in Plasmodium falciparum acquired in Africa. On presenting with malaria two weeks after returning from a 4-week visit to Lagos, Nigeria without prophylaxis, a male patient was given a standard 3-day treatment course of Malarone. Twenty-eight days later the parasitaemia recrudesced. Parasites were cultured from the blood and the isolate (NGATV01) was shown to be resistant to atovaquone and the antifolate pyrimethamine. The cytochrome b gene of isolate NGATV01 showed a single mutation, Tyr268Asn which has not been seen previously.

  15. CLIMA ORGANIZACIONAL Y DESEMPEÑO LABORAL DEL PERSONAL EMPRESA VIGILANTES ASOCIADOS COSTA ORIENTAL DEL LAGO

    OpenAIRE

    Niria Quintero; Nelly Africano; Elsis Faría

    2008-01-01

    Este trabajo es el resultado de un diagnóstico del clima organizacional y el desempeño laboral del personal de la empresa Vigilantes Asociados de la Costa Oriental del Lago (VADECOL). La investigación es de tipo descriptivo cuantitativo en la modalidad de campo. La población fue de 82 trabajadores y la muestra de 45 trabajadores, se utilizó la técnica de muestreo probabilística donde todas las unidades de población tuvieron la misma probabilidad de ser seleccionados. Se aplicó ...

  16. Genetic Relationships of Common Bean (Phaseolus vulgaris L. Race Chile with Wild Andean and Mesoamerican Germplasm Relaciones Genéticas entre el Germoplasma de Poroto (Phaseolus vulgaris L. Raza Chile y Silvestres Andinos y Mesoamericanos

    Directory of Open Access Journals (Sweden)

    Viviana Becerra V

    2011-03-01

    Full Text Available The Chilean common bean (Phaseolus vulgaris L. belongs to the cultivated race Chile and its origin is presumably Andean. The objective of this study was to identify the origin of a group of Chilean accessions based on their genetic relationship with wild material from the Mesoamerican and Andean common bean gene pool. To achieve this objective, universal primers of chloroplast DNA (cpDNA and mitochondrial DNA (mtDNA were used to detect polymorphism using Polymerase Chain Reaction - Restriction Fragment Length Polymorphism (PCR-RFLP. Thirty-two genotypes were analyzed, including wild material from Mexico, Ecuador, Peru, Bolivia, and Argentina, as well as Chilean cultivated genotypes belonging to endemic Chilean accession types (Tórtola, Coscorrón, and Cuyano and naturalized commercial lines (Frutilla, Bayo, Manteca, and Blanco grande. Results showed a low level of polymorphism for cpDNA (23% and mtDNA (24% in wild and cultivated Chilean common bean accessions. Some universal primers and restriction enzyme combinations were more efficient than others in detecting polymorphism. The Chilean materials were closely related to wild accessions collected in Argentina, Bolivia, and Peru indicating their Andean origin. The wild accessions from Ecuador were located in a intermediate position between the Mesoamerican and Andean accessions.El poroto chileno (Phaseolus vulgaris L. pertenece a la raza Chile, cuyo origen es desconocido y presumiblemente andino. El objetivo del trabajo fue identificar el origen de un grupo de genotipos chilenos basado en sus relaciones genéticas con material silvestre perteneciente a los acervos genéticos mesoamericano y andino. Para lograr este objetivo se usaron partidores universales de ADNcp y ADNmt con la metodología de la Reacción en Cadena de la Polimerasa-Fragmentos de Restricción Polimórficos. (PCR-RFLP. Se analizó un total de 32 genotipos de P. vulgaris, los cuales incluyeron materiales silvestres de M

  17. O ecologismo dos pobres

    OpenAIRE

    ALIER, Juan Martinez

    1997-01-01

    O ecologísmo tem colocado em cheque as leis capitalistas de mercado, principalmente na sua fase globalizada, devido à apropriação e exploração inconsequente dos recursos naturais. Ao mesmo tempo tem apontado que o meio ambiente não se reduz ao tratamento somente cientifico da natureza. O presente artigo ressalta aspectos importantes do ecologísmo como a participação das mulheres, o marxismo, o neo-narodnismo, etc. e é rico em exemplos de problemas ambientais decorrentes das relações de produç...

  18. Dos cupas complutenses

    Directory of Open Access Journals (Sweden)

    Stylow, Armin U.

    2006-12-01

    Full Text Available Publication of two cupae from the ancient territory of Complutum. One was found in excavations in Alcalá de Henares (Madrid and is unpublished; of the other one, which came to light in the church of Alovera (Guadalajara, a new reading is given.Se publican dos cupas del antiguo territorio de Complutum, una, inédita, encontrada en excavación en Alcalá de Henares (Madrid, y la segunda, procedente de la iglesia de Alovera (Guadalajara, con una nueva lectura.

  19. The DosS-DosT/DosR Mycobacterial Sensor System

    Directory of Open Access Journals (Sweden)

    Santhosh Sivaramakrishnan

    2013-07-01

    Full Text Available DosS/DosR is a two-component regulatory system in which DosS, a heme-containing sensor also known as DevS, under certain conditions undergoes autophosphorylation and then transfers the phosphate to DosR, a DNA-binding protein that controls the entry of Mycobacterium tuberculosis and other mycobacteria into a latent, dormant state. DosT, a second sensor closely related to DosS, is present in M. tuberculosis and participates in the control of the dormancy response mediated by DosR. The binding of phosphorylated DosR to DNA initiates the expression of approximately fifty dormancy-linked genes. DosT is accepted to be a gas sensor that is activated in the ferrous state by the absence of an oxygen ligand or by the binding of NO or CO. DosS functions in a similar fashion as a gas sensor, but contradictory evidence has led to the suggestion that it also functions as a redox state sensor. This review focuses on the structure, biophysical properties, and function of the DosS/DosT heme sensors.

  20. O Manual de intervenções no Litoral da Região Autónoma dos Açores

    OpenAIRE

    Fernando Veloso Gomes; Francisco B. Caldas; Paulo T. Santos; Rui Figueiredo

    2013-01-01

    O Projeto LITOMAC (Cooperação e Sinergias no Estabelecimento e Planeamento Sustentável das Zonas Litorais da Região da Macaronésia), de que fazem parte os arquipélagos dos Açores, da Madeira e das Canárias, apresenta como objetivo principal ¿o estabelecimento de faixas litorais definidas em função de um conjunto de variáveis ambientais e territoriais, adaptadas à singularidade de cada uma das ilhas, constituindo uma ferramenta fundamental na gestão do litoral¿ e está estruturado através de um...

  1. Performance Risks Allocation in Bot Infrastructure in Nigeria: A Case Study of Lagos Infrastructure Project

    Directory of Open Access Journals (Sweden)

    Sanni Gabriel A.

    2017-08-01

    Full Text Available The study assessed allocation, criteria and allotment effectiveness of performance risks in Build- Operate-Transfer (BOT transportation infrastructure in Nigeria using Lagos Infrastructure Project (LIP as a case study. LIP is the only BOT-procured tolled road that has attained ‘operate’ stage of BOT cycle in Nigeria. It revealed that more operating risks were actually allocated to the concessionaire than the grantor and most of the risks were preferred retained by the allottee. Significant fraction of the risks was effectively allocated between the concessionaire and grantor except those that involve close interface between participants. While grantor rated nine risks high and seven risks very high; the concessionaire assessed nine risks to be high and five risks to be very high; the grantor rated the effectiveness level to be seventy three per cent and the concessionaire assessed it to be sixty four per cent. The study recommended that the evolving knowledge from Lagos Infrastructure Project (LIP should be documented to guide future BOT transactions in Nigeria.

  2. A study on pharmacovigilance of herbal medicines in Lagos West Senatorial District, Nigeria.

    Science.gov (United States)

    Awodele, O; Daniel, A; Popoola, T D; Salami, E F

    2013-01-01

    There is an increasing use of herbal products and herbal medicines globally with the belief that herbal medicines are always 'safe' and carry no risk because they are from natural sources. However, there are concerns regarding medicinal plants and their ability to produce adverse effects. The growing herbal medicine usage has increased the need to monitor the safety of herbal medicines. Thus, the recommended approach by the World Health Organization (WHO) is to include herbal medicines in existing national pharmacovigilance systems. This study aimed to determine the knowledge of pharmacovigilance of herbal medicines amongst herbal medicine practitioners. The study was carried out in Lagos West Senatorial District of Lagos State, Nigeria. Three categories of practitioners (378 respondents) were engaged and they include Traditional Herbal Sellers, Natural Health Practitioners and Pharmacists. The results showed that herbal medicines are commonly recommended for malaria, typhoid, diabetes and fever. 281 (74.3%) of the respondents claimed that herbal medicines have no adverse effects and only 91 (24.1%) of the respondents said there were some adverse effects reported by the users. Adverse effects reported include nausea, diarrhoea and weight loss. Amongst those that received reports of adverse effects, only 19 (20.9%) documented these reported adverse effects; none of these documentations were forwarded to the regulatory bodies or national pharmacovigilance centre in Nigeria. These results showed inadequate adverse effects monitoring (Pharmacovigilance) amongst the practitioners and underscore the necessity to educate and enlighten herbal medicine practitioners on the need for pharmacovigilance activity of herbal products.

  3. Perception of service satisfaction and quality of life of patients living with schizophrenia in Lagos, Nigeria.

    Science.gov (United States)

    Afe, Taiwo Opekitan; Bello-Mojeed, Mashudat; Ogunsemi, Olawale

    2016-01-01

    To assess service-satisfaction and quality of life among patients with schizophrenia in a tertiary psychiatric healthcare facility in Lagos, Nigeria. Cross-sectional survey of 101 (out of 120) patients diagnosed with schizophrenia attending the outpatient clinic of the Federal Neuro-Psychiatric Hospital Yaba, Lagos, Nigeria. The Structured Clinical Interview for DSM-IV diagnosis (SCID), Charleston Psychiatric Out-patient Scale (CPOSS), and the World-Health Organisation Quality of Life -Bref scale (WHOQOL-BREF) was used in assessing diagnosis, patient satisfaction and subjective quality of life respectively. The ages of the patient ranged from 19-81. Males (49.5%) and females (50.5%) had almost equal distribution. Mean duration of attendance was 8.7years ± 8.50. Service satisfaction ranged between 25-60 on the CPOSS. Areas that had higher mean scores on CPOSS were with items (1) Helpfulness of the records clerk (3.70±1.1), (7) Helpfulness of services received (3.69±1.0). Subjective quality of life was high (3.65±1.8), satisfaction with health was also high (3.40±1.1). Service satisfaction correlated with Quality of life at P < 0.00.

  4. Neighborhood Deprivation and Self-Rated Health in Lagos State, Nigeria

    Directory of Open Access Journals (Sweden)

    Rasheed Kola Ojikutu

    2008-10-01

    Full Text Available This study examines the effect of neighborhood deprivation on the perception of the individuals about their own health in Lagos State, Nigeria. Respondents were required to rate their own health as "excellent, very good, good, fair, poor and very poor". The questionnaire contained questions on various aspect of the respondents neighborhood and their perception about them. It was found that most neighborhoods in Lagos State are deprived of basic essentials of life such as electricity, water, good roads and security. Over 43% of the respondents claimed to have visited a hospital two or more times and 43.7% had lost at least two neighbors in the past one year. Over half (57.8% of the respondents rated their own health as good, 36.6% ranked their own health as fair while only 5.6% claimed to have poor health. A fitted regression model ( r2 = 0.644 showed that variables such as number of dependants, income, occupation, type of residential accommodation, ownership of house, number of rooms occupied, mode and convenience of transportation, accessibility to water, electricity and good roads and security jointly determine the perception of an individual about his own health status.Key Words: Neighborhood, Deprivation, Self Rated Health, Security, ResidenceDOI = 10.3126/dsaj.v2i0.1364Dhaulagiri Journal of Sociology and Anthropology Vol.2 pp.193-210

  5. PATTERN OF ASSAULT-RELATED MAXILLOFACIAL INJURIES TREATED AT THE GENERAL HOSPITAL, LAGOS, NIGERIA.

    Science.gov (United States)

    Olojede, Aco; Gbotolorun, O M; Ogundana, O M; Emeka, I C; Emmanuel, M M; Oluseye, Sab; Runsewe, O

    2016-01-01

    The human face often constitutes the first point of contact in various human interactions and it is frequently the preferred target for blows in assault cases. To analyze the pattern of assault-related maxillofacial injuries treated at the General Hospital, Lagos over a period of one year. This is one year prospective study of assault-related maxillofacial injuries treated at the Department of Oral-Maxillofacial Surgery, Dental Centre, General Hospital, Lagos, Nigeria. A face-to-face interviewer-administered structured proforma was used to obtain information from study subjects. Thirty-three patients with maxillofacial injuries met the inclusion criteria for this study. Their age ranged between 16 and 48 years with a mean age of 28.2 ± 7.4 years. There were 25(75.8%) males and 8(24.2%) females with a male/female ratio of 3:1. Majority of the patients, 24(72.7%) did not have any skilled employment while the remaining 9(27.3%) were road transport workers, specifically commercial bus drivers and motorcycle riders. The most frequently seen soft tissue injury was contusion which accounted for 17(51.5%) cases while 13 (39%) of the patients sustained mandibular fracture which was the most common hard tissue injury. Assault-related maxillofacial injuries are most common amongst young adult males who are not skillfully employed; this can be attributed to the increased disposition to violence in males in our environment.

  6. Comparative Analysis of the Phytochemical Composition of Common Commercial Polyherbal Medicine in Lagos, Nigeria.

    Science.gov (United States)

    Oluwole-Banjo, A K; Faleye, E A

    2015-01-01

    There is a widespread increasing use of herbal medicine among the populace in the society. The poor regulation of herbal medicine production and use raises issues of public health concerns. To determine and compare the phytochemicals present in different classes of herbal medicines sold in Lagos, Nigeria Commonly sold brands of three classes of herbal medicine - herbal bitters, herbal energy drinks and 'Agbo' were purchased from major markets in Lagos, Nigeria. Qualitative and quantitative phytochemical analyses were carried out on the 30 samples identified The study revealed the presence of wide array of phytochemicals in all the brands and classes of herbal medicines identified. The mean concentrations of alkaloids and glycosides at 25pg/ml and 20 pg/ml were comparatively highest in 'Agbo' and herbal bitters, tannin and total phenolics of 10 pg/ml and 25pg/ml respectively were comparatively highest in herbal energy drinks. The qualitative and quantitative compositions of the phytochemicals present in the samples were identified. However, because the Recommended Daily Allowance (RDA) for phytochemicals has not been determined, people should exercise caution in the consumption of these herbal medicines because of the inherent health risk from the toxic effects of these phytochemicals.

  7. Optically stimulated luminescence dating of archaeological ceramics from Osvaldo and Lago Grande sites in central Amazon

    International Nuclear Information System (INIS)

    Hazenfratz, Roberto; Tudela, Diego R.G.; Munita, Casimiro S.; Mittani, Juan C.R.; Tatumi, Sonia H.

    2013-01-01

    Thermoluminescence (TL) and optically stimulated luminescence (OSL) dating are two important techniques for dating archaeological and geological material, especially suitable for archaeological ceramics, where samples for 14 C dating are not available. In this work, five pottery shards from Osvaldo and Lago Grande archaeological sites were dated by OSL. For measurements, it was used the SAR protocol. The annual dose rates were estimated by the contents of U, Th and K, determined by instrumental neutron activation analysis (INAA) of the pottery shards and clay samples near both sites. Lago Grande and Osvaldo represent a microcosm of the region, and their proximity and high density of archaeological record turn them interesting to study possible relations of cultural and/or commercial exchange. Calculations showed that the water content is an important variable that cannot be neglected in OSL dating of pottery shards from central Amazon, due to the high humidity in regional soils. The results between 867 ± 101 and 1154 ± 62 years AD agreed with the average time span for the archaeological sites occupation found in the literature. (author)

  8. Urbanization, housing, homelessness and climate change adaptation in Lagos, Nigeria: Lessons from Asia

    Directory of Open Access Journals (Sweden)

    Ilesanmi Adetokunbo

    2015-12-01

    Full Text Available The phenomenon of climate change heralds distinctive challenges for sub-Saharan Africa’s urban areas, with economic, social, and health impacts, and severe effects on housing and infrastructure. This study examined climate-change induced vulnerabilities including the urban housing crisis and homelessness in the context of Lagos mega-city, Nigeria, with a view to defining the potential lessons to learn from the Asian urban experience. The study conducted case-study analyses of Lagos and the Asian urban experience, highlighting the megacity-related vulnerabilities. It identified gender and aging as key factors in understanding vulnerability. Lessons from Asia relate to: the conscious policy-linkage of urban demographic expansion and economic growth; synergy between formal and informal sectors; urban densification through compact, mixed-land use development; broad-based urbanization; metropolitan expansion; pursuit of slum-free cities; prominence of housing in national policies; pro-poor financial frameworks; and extensive adoption of mitigation and adaptation strategies in the coastal conurbations. The paper concluded on the critical role of urban governance in reducing vulnerability, the need for greater multi-disciplinary stakeholders’ collaboration and partnership, and the expediency of fitting adaptation strategies and resilience responses to specific needs, capacities and priorities of impact groups. These could enhance the transformation of mega-cities into more adaptable and resilient urban systems.

  9. Sexual Violence Among Out-of-School Female Adolescents in Lagos, Nigeria

    Directory of Open Access Journals (Sweden)

    Kofoworola Odeyemi

    2016-10-01

    Full Text Available Sexual violence against females is a public health problem. This descriptive cross-sectional study sought to determine the prevalence of sexual violence among out-of-school female adolescents in Lagos, Nigeria and examine the context in which it occurs. Three hundred and fifty adolescents, between the ages of 10 and 19 years, working in Sandgrouse market, Lagos, were selected using cluster sampling. Data were collected using an interviewer-administered questionnaire. Almost half (42.9% of the respondents have had sexual intercourse, and median age at initiation was 17 years. Forced initiation was reported by 15.8%, and 36.3% reported that first intercourse was due to coercion. Among the sexually active, only 12.3% stated that “it is what they desire.” Majority of respondents (64.1% believe that rape is common in their community, and 18% of the sexually active have experienced rape. Out-of-school adolescents in this community are at risk of sexual violence. The factors that make them vulnerable need to be addressed.

  10. Correlates of job satisfaction amongst quantity surveyors in consulting firms in Lagos, Nigeria

    Directory of Open Access Journals (Sweden)

    Henry Ndubuisi Onukwube

    2012-05-01

    Full Text Available Normal 0 false false false EN-US X-NONE X-NONE Job satisfaction is the sense of well- being, good feeling and positive mental state that emerge in an incumbent worker when his obtained reward consequent upon his performance is congruent with his equitable reward.The aim of this study is to ascertain the levels of job satisfaction amongst quantity surveyors in consulting firms in Lagos, Nigeria. Biographical and job descriptive index questionnaires (JDI were administered to gather the data. The JDI measures job satisfaction on five facets, namely, pay, promotions, supervision, co-workers and the work itself. A total of 100 questionnaires were collected and used for the study. The survey covered quantity surveyors in consulting firms in Lagos and the respondents were selected using stratified random sampling technique. Data collected were analysed using descriptive statistics, correlation matrix, t-test and one way anova. Findings of the study revealed that the respondents were satisfied with the relationship with co-workers, nature of work and the supervision they receive. Major sources of dissatisfaction are promotion and salaries of the respondents. This finding is a bold step and necessary benchmark for resolving major sources of dissatisfaction among quantity surveyors in consulting firms. The roles of other contextual factors on job satisfaction need to be contemplated for future research.

  11. Correlates of job satisfaction amongst quantity surveyors in consulting firms in Lagos, Nigeria

    Directory of Open Access Journals (Sweden)

    Henry Ndubuisi Onukwube

    2012-05-01

    Full Text Available Job satisfaction is the sense of well- being, good feeling and positive mental state that emerge in an incumbent worker when his obtained reward consequent upon his performance is congruent with his equitable reward.The aim of this study is to ascertain the levels of job satisfaction amongst quantity surveyors in consulting firms in Lagos, Nigeria. Biographical and job descriptive index questionnaires (JDI were administered to gather the data. The JDI measures job satisfaction on five facets, namely, pay, promotions, supervision, co-workers and the work itself. A total of 100 questionnaires were collected and used for the study. The survey covered quantity surveyors in consulting firms in Lagos and the respondents were selected using stratified random sampling technique. Data collected were analysed using descriptive statistics, correlation matrix, t-test and one way anova. Findings of the study revealed that the respondents were satisfied with the relationship with co-workers, nature of work and the supervision they receive. Major sources of dissatisfaction are promotion and salaries of the respondents. This finding is a bold step and necessary benchmark for resolving major sources of dissatisfaction among quantity surveyors in consulting firms. The roles of other contextual factors on job satisfaction need to be contemplated for future research.

  12. Subordinación local al manejo territorial globalizado de la ribera del lago de Chapala

    Directory of Open Access Journals (Sweden)

    Adriana Hernández

    2017-06-01

    Full Text Available El presente artículo aborda el proceso de reapropiación del lago de Chapala, México. En las últimas décadas se han venido transformando el suelo y la producción agrícola en los municipios ribereños del lago de Chapala debido a la introducción de cultivos de exportación mediante sistemas modernos de producción tecnificada. Por lo que los cultivos tradicionales han ido disminuyendo o se producen con mayor uso de pesticidas, fertilizantes y agroquímicos. El papel del campesino ribereño también se ha modificado debido a que las agroempresas trasnacionales generan una estructura de renta o compra de suelos y parcelas que utilizan durante un periodo de años, perdiendo el dueño el uso de sus tierras a cambio de un ingreso seguro. En el escenario ribereño actual, el campesino se transforma en receptor económico y, en ocasiones, en trabajador de sus propias tierras, sin posibilidad de decisión sobre ellas. Por lo que se encuentran en peligro los saberes locales históricos de las poblaciones ribereñas así como su cultura lacustre.

  13. Assessing smart infrastructure for sustainable urban development in the Lagos metropolis

    Directory of Open Access Journals (Sweden)

    Oluwole Soyinka

    2016-12-01

    Full Text Available The challenges of sustainable urban development increases daily and the usual planning approaches to ameliorate these challenges are ineffective. This study assesses the applicability of ‘smart infrastructure’ to achieve sustainable urban development in Lagos metropolis. The study theoretical framework is based on ‘smart’ principles. The study adopts a mixed method of data collection and analysis with multi-stage sampling techniques of 460 households in six communities of Eti-Osa and Ikeja local government areas of Lagos metropolis. The objectives of the study were to examine the socioeconomic characteristics of the residents and assess the infrastructure, the building uses and the environmental conditions of the study areas in relation to smart principles and smart infrastructure application in the study areas. The data were analyzed using inferential statistics and the findings reflect that the building use is sprawl development in nature with the informal settlement and infrastructure inadequacy as the major challenges. Smart infrastructure approaches are identified as applicable for achieving sustainable development in the study areas with smart interventions in socioeconomic status of the residents, the environment, the building uses and the basic facilities and services in the study areas.

  14. Heavy Metal Pollution Monitoring in Vulnerable Ecosystems: A Case Study of the Lagos Lagoon, Nigeria.

    Science.gov (United States)

    Bawa-Allah, K A; Saliu, J K; Otitoloju, A A

    2018-03-08

    This comparative analysis was carried out to monitor heavy metal concentrations in the Lagos Lagoon over the last 2 decades. Surface water and sediment samples were collected from stations on the Lagos Lagoon based on their suitability for comparative analysis and future monitoring. Heavy metal content in samples was determined using Flame atomic absorption spectrophotometry (FAAS). The concentrations in the samples were compared to those obtained by Don-Pedro et al. (West African Journal of Applied Ecology 5:103-114, 2004) in previous studies from the same sampling zones. Results show that concentration of most heavy metals analysed has reduced significantly (p < 0.05) in the past 2 decades. However, the concentration of Cadmium (Cd) was found to have increased significantly (p < 0.05) over the same period. Increased concentration of Cadmium poses a threat to ecosystem health thus, it is imperative that safe limits for heavy metal discharge in waste streams should be revised and implemented.

  15. Preliminary characterization of ceramics from the Lago Grande archaeological site in the central Amazon by INAA

    International Nuclear Information System (INIS)

    Hazenfratz, Roberto; Munita, Casimiro S.; Neves, Eduardo G.; Oliveira, Paulo M.S.; Toyota, Rosimeiri G.

    2009-01-01

    The macroscopic characteristics of archaeological ceramics, such as the surface decoration and shape, are used as cultural and chronological indicators of ancient people. The combination of stylistic-typological studies with archaeometric analysis, as provenance studies, has been considered of great importance in Archaeology. The purpose of this paper is to contribute to the understanding of the pre-colonial Amazonian occupations. Inside this context, fifty ceramic fragments from the Lago Grande archaeological site were analyzed by INAA in order to characterize its elemental composition. The results were treated with multivariate statistics: Cluster, Principal Components and Discriminant Analysis. The results obtained by these three methods were compared in an effort to achieve some correlation with the archaeological context. It was stated the existence of two different groups of artifacts. They probably regard to the main ceramic phases found in the site excavation: Paredao and Manacapuru. Once confirmed by other archaeological analyses, these results could corroborate an exchange net among the former inhabitants of Lago Grande and other sites in the neighborhood. (author)

  16. Addressing the Multiple Drivers of Wetland Ecosystems Degradation in Lagos, Nigeria

    Science.gov (United States)

    Agboola, J.; Ndimele, P. E.; Odunuga, S.; Akanni, A.; Kosemani, B.; Ahove, M.

    2015-12-01

    Several body of knowledge have noted the importance of wetland ecosystems in climate moderation, resource supply and flood risk reduction amongst others. Relevant as it may, rapidly increasing population and uncontrolled urban development poses a challenge in some regions and require understanding of the ecosystem components and drivers of change over a long period of time. Thus, the main thrust of this paper is to analyse multiple drivers of wetland ecosystems degradation in the last 30 years in the Lagos megacity using field study, desktop review, satellite data and laboratory analysis. Key drivers identified includes: conversion of wetlands to settlements and waste sink, land use planning that neglects wetland conservation and restoration, ineffective legal status for wetlands, over exploitation leading to degradation and fragmentation of wetland ecosystems governance. In stemming further loss of this vital ecosystem, this study adopted and proposed respectively, the Drivers, Pressure, State, Impact and Response (DPSIR) and Integrated Planning Approach (IPA) frameworks in analysing policy and governance issues in wetland development. These analyses figured out amongst others, strict conservation and sustainable use of wetland resources, habitat restoration, climate adaptation measures, legal protection and wetland management institution as major responses to current multiple pressures facing wetland ecosystems in Lagos. For these frameworks to be made meaningful, weak coordination among government agencies and institutional capacity in implementation and law enforcement, unsustainable resource extraction by private/business organization and issues on alternative sources of income on the part of the local communities amongst others needs to be addressed.

  17. Characterization of Clostridium Species from Food Commodities and Faecal Specimens in Lagos State, Nigeria.

    Science.gov (United States)

    Chukwu, E E; Ogunsola, F T; Nwaokorie, F O; Coker, A O

    2015-01-01

    Food-borne pathogens are a major public health challenge worldwide. These organisms' cause illnesses leading to time loss in the work place and reduced productivity.Clostridium species cause infections through the production of powerful toxins which are responsible for diarrhoea and cramping. Diarrhoeal diseases due to Clostridia are one of the commonest worldwide but have hardly been reported in Nigeria. This study characterized Clostridium species from food commodities and human faeces in Lagos State MATERIALS AND METHODS: Four hundred and twenty samples comprising food (220) and faecal (200) specimens in Lagos state were included in this study. Isolates obtained were identified using API 20-A and confirmed by Polymerase Chain Reaction assay and 16S rRNA sequencing. The food samples included meat and meat products, ready to drink traditionally prepared milk products, fresh vegetables, canned foods and local honey. Seventy (16.7%) Clostridium species were identified, 50 from food and 20 from faeces. Majority of the isolates were obtained from vegetables (56%) and meat products (34%). Of the 70 Clostridial species, 38 (54.3%) were C. perfringens, 5 (7.1%) were C. difficile and 2 (2.9%) were C. botulinum. All 38 (100%) strains of C. perfringens possessed alpha (cpa) toxin gene. Clostridium species are present in our environment and contaminate food products posing potential risks to consumers. There is therefore a need for these traditionally made street vended foods to be monitored because they are potential sources of food borne pathogens.

  18. Late Holocene evolution of the River Bensafrim estuary, Lagos (Portugal) - Gearchaeological remarks concerning geomorphological changings

    Science.gov (United States)

    Gomes, J. A.; Ramos-Pereira, A.; Trindade, J.

    2012-04-01

    1. The site Lagos is a city in western Algarve situated on the right margin of the Ribeira de Bensafrim. Its dissymmetric estuary has two hills: one that supports the town of Lagos and the hill of Monte Molião, known for its archaeological site. During the Late Iron Age the establishment was constrained to the top of that small hill Molião After that period, in Roman Age, people moved their location to the right river margin, founding what was then known as Laccobriga - Lagos. 2. Objectives and methodology The main objective of this study is to understand the possible causes for the abandonment of Monte Molião and what were the reasons behind the foundation of the roman city of Laccobriga? The data used were the results from the sedimentary analysis of cores in the alluvial plain of the Bensafrim valley, radiocarbon data, together with the previous excavation results and structure analysis. 3. First results: (i) In the sedimentary record, the rate sand/clay as well as several statistical parameters and shells, show different energetic environments. (ii) Radiocarbon data shows that the estuary remained open until 2800 cal BP, when a spit developed at the mouth of the estuary and a salt marsh begin to develop behind the sand barrier. (iii) Remnants of fishing activities since the Iron Age found in the archaeological site highlight different strategies for the establishment around the estuary. Archeological data tells us that, the Iron Age fishing was mainly fluvial, while later shellfish remains point that in the roman period fishing activities were made in open sea. (iv) The analyzed roman structures in the archaeological site of Monte Molião, show a clear sign of a violent seismic destruction probably related to the known 63 b.C. earthquake. 4. Conclusions (i) It is proven that in the river Bensafrim the estuary changed from an open estuary before 2800 cal BP to a closed one. This could have forced the change of the fishing habits of the populations that

  19. Expanding Access for Training of Science Teachers through ODL: A Case Study of University of Lagos, Nigeria

    Science.gov (United States)

    Okunuga, A. O.; Olaoluniyi, O.; Opara, A. I.

    2013-01-01

    Rising up to the challenge of shortage of middle manpower in Nigeria, the University of Lagos established the Correspondence and Open Studies Unit (COSU), now Distance Learning Institute DLI). Accounting, Business Administration and Science-Education were the pilot courses at the B.Sc. level. The Special Entry Preparatory Programme (SEPP) was…

  20. Mediterranean outflow pump : An alternative mechanism for the Lago-mare and the end of the Messinian Salinity Crisis

    NARCIS (Netherlands)

    Marzocchi, Alice; Flecker, Rachel; Van Baak, Christiaan G.c.; Lunt, Daniel J.; Krijgsman, Wout

    2016-01-01

    The final stage of the Messinian salinity crisis (MSC) was characterized by brackish-water “Lago-mare” conditions in the intermediate and marginal basins of the Mediterranean Sea. The presence of Paratethyan (former Black Sea) fauna in these deposits has fueled long-lasting controversies over the

  1. Home and School Environments as Determinant of Social Skills Deficit among Learners with Intellectual Disability in Lagos State

    Science.gov (United States)

    Isawumi, Oyeyinka David; Oyundoyin, John Olusegun

    2016-01-01

    The study examined home and school environmental factors as determinant of social skills deficit among learners with intellectual disability in Lagos State, Nigeria. The study adopted survey research method using a sample size of fifty (50) pupils with intellectual disability who were purposively selected from five special primary schools in Lagos…

  2. The Relevance of Multi Media Skills in Teaching and Learning of Scientific Concepts in Secondary Schools in Lagos State, Nigeria

    Science.gov (United States)

    Okedeyi, Abiodun S.; Oginni, Aderonke M.; Adegorite, Solomon O.; Saibu, Sakibu O.

    2015-01-01

    This study investigated the relevance of multi media skills in teaching and learning of scientific concepts in secondary schools. Self constructed questionnaire was administered to 120 students randomly selected in four secondary schools in Ojo Local Government Area of Lagos state. Data generated were analyzed using chi-square statistical…

  3. New Prof Omeje Pornography Addiction as Correlate of Psychosocial and Academic Adjustment of Students in Universities in Lagos State

    Science.gov (United States)

    Ohuakanwa, Chijioke Ephraim; Omeje, Joachim Chinweike; Eskay, Michael

    2012-01-01

    The study sought to investigate the relationship between pornography addiction and psychosocial and academic adjustment of students in universities in Lagos State. In order to achieve this objective, five research questions were formulated and two hypotheses postulated. The subjects for the study consisted of 616 full-time third-year undergraduate…

  4. Murciélagos del área urbana en la ciudad de Montería, Córdoba - Colombia

    OpenAIRE

    Jesús Ballesteros C.; Javier Racero-Casarrubia

    2012-01-01

    RESUMENObjetivo. Conocer la riqueza de especies de murciélagos del área urbana de la ciudad de Montería. Materiales y métodos. Durante el período de enero a junio de 2007, se realizaron capturas de murciélagos utilizando cinco redes de nieblas (12x2 m). Se realizaron trece muestreos en varios sitios de la ciudad, abriendo las redes desde las 18:00 a las 24:00 horas, con un esfuerzo de 524 horas-red/noche. Resultados. De 604 individuos capturados se identificaron 24 especies de murciélagos. La...

  5. Estudios experimentales de los efectos mecánicos sobre la biología del cartílago de crecimiento

    OpenAIRE

    Arriola, Forriol, F. F.

    1998-01-01

    El cartílago de crecimiento es la estructura encargada del crecimiento en longitud de los huesos largos. En el hombre los diferentes cartílagos de crecimiento cumplen su función durante un tiempo determinado hasta desaparecer. Cada cartílago de crecimiento tiene una velocidad de crecimiento y un tiempo de evolución determinado por factores que nos resultan desconocidos si bien se sabe que son tanto sistémicos como mecánicos. En este trabajo se presenta una revisión de trabajos experimental...

  6. Sistema de humedales artificiales para el control de la eutroficación del lago del Bosque de San Juan de Aragón

    OpenAIRE

    Luna-Pabello, Víctor Manuel; Aburto-Castañeda, Sergio

    2014-01-01

    El lago del Bosque de San Juan de Aragón (LBSJA), ocupa una superficie de 12 hectáreas. El lago está eutrofizado debido a que el sistema de lodos activados, conocido como "Tlacos", descarga parcialmente agua tratada dentro del lago y ésta contiene concentraciones de nitrógeno y fósforo que propician el crecimiento de microalgas. En este estudio, se describen los aspectos relevantes sobre el diseño, construcción y arranque operativo de un sistema de tratamiento a base de humedales artificiales...

  7. Factors influencing CD4 cell count in HIV-positive pregnant women in a secondary health center in Lagos, Nigeria

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    Akinbami AA

    2015-04-01

    Full Text Available Akinsegun A Akinbami,1 Abidoye Gbadegesin,2 Sarah O Ajibola,3 Ebele I Uche,1 Adedoyin O Dosunmu,1 Adewumi Adediran,4 Adekunle Sobande2 1Department of Haematology and Blood Transfusion, 2Department Of Obstetrics and Gynaecology, College of Medicine, Lagos State University, Ikeja, Lagos, Nigeria; 3Department of Haematology and Immunology, Ben-Carson School of Medicine, Babcock University, Ilisan, Ogun State, Nigeria; 4Department of Haematology and Blood Transfusion, Faculty of Clinical Sciences, College of Medicine, University of Lagos, Lagos, Nigeria Background: Immunity in pregnancy is physiologically compromised, and this may affect CD4 count levels. It is well-established that several factors affect CD4 count level in pregnancy. This study aimed to determine the mean and reference range of CD4 count in human immunodeficiency virus (HIV-positive pregnant women in Lagos, Nigeria. Methods: A retrospective study was carried out at antenatal clinics of the Maternal and Child Center of a secondary health center in Lagos State, Nigeria. Records of HIV-positive pregnant women at various gestational ages, including CD4+ cell count at booking, packed cell volume (PCV at booking and labor, gestational age at delivery, and infant weight and sex were retrieved. The descriptive data was given as mean ± standard deviation (SD. Pearson's chi-squared test and correlation were used for analytical assessment. Results: Data were retrieved for a total of 143 patients. The mean age was 31.15±3.78 years. The mean PCV was 31.01%±3.79% at booking and 30.49%±4.80% during labor. The mean CD4 count was 413.87±212.09 cells/µL, with a range of 40 to 1,252 cells/µL. The mean infant weight was 3.05±0.45 kg, with a range of 2 to 5 kg. Age of the mother, gestational age, and PCV at booking were not statistically significantly associated with CD4 count. Conclusion: Maternal age, gestational age, and PCV at booking had no significant effects on CD4+ cell count levels in

  8. A sociedade dos vivos

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    Leis Héctor Ricardo

    2003-01-01

    Full Text Available A pergunta: qual é o significado da experiência da morte na sociedade contemporânea? A hipótese: que existe uma faceta sombria e degradante da condição humana, associada à privatização institucional ou "pacificação" da morte que estamos assistindo em nossa época. Muitos teóricos sociais contemporâneos apostam em estratégias como a reflexividade para reconstruir a fragmentação do ser humano, porém essa reconstrução mal poderia vir sem procurar apoio em aspectos chaves da condição humana. Apontar alguns dos déficits da teoria social contemporânea e assinalar alguns caminhos para superar impasses da sociedade contemporânea resume a tentativa deste trabalho.

  9. Municipal household solid waste collection strategies in an African megacity: analysis of public private partnership performance in Lagos.

    Science.gov (United States)

    Aliu, Ibrahim Rotimi; Adeyemi, Oluwagbemiga Ezekiel; Adebayo, Adeolu

    2014-09-01

    Managing municipal solid waste is a pervasive urban problem globally. While several strategies have been applied for efficient municipal solid waste management in developing economies, their performance level has not been critically investigated. Among these strategies, the public private partnership has widest appeal. This study examines the performance of public private partnership in household solid waste collection in Lagos, Nigeria. We collected primary data using a municipal solid waste survey in three residential density areas of Lagos megacity. Descriptive and inferential statistics were used to analyse the data. Two indexes of service performance, namely the service reliability index and operational quality index, were created to produce evidence on public private partnership performance in municipal solid waste collection in Lagos. Results show that the average amount of household solid waste generation per week ranges between 22.75 kg in the medium residential density area and 30.39 kg in the high residential density region of the city. The estimated per capita waste generated in Lagos Megacity is 0.95 kg day(-1). Regression models indicate that the public private partnership performance is significantly influenced by economic status, affordability, flexibility, consistency, cleanliness, coverage and accessibility, as well as number of waste collection vehicles, vehicle maintenance, capacity, trip rate, frequency, number of personnel and quality of personnel. Findings from this study reveal that Lagos residents have strong positive perception of public private partnership as a waste collection policy framework. The study has important policy and practical implications for urban waste management, public health and sustainability in developing economies. © The Author(s) 2014.

  10. A Influência dos Parques Urbanos no Microclima de Goiânia

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    Ana Paula Moreira Rodrigues

    2017-08-01

    Full Text Available o crescimento do tecido urbano promove, dentre outras alterações, a substituição do ambiente natural pelo ambiente construído, estas trocas alteram de modo significativo o microclima das cidades. A presente investigação realizou um comparativo dos parques urbanos de Goiânia – GO (Areião, Lago das Rosas, Bosque dos Buritis e Flamboyant com ambientes externos, no mesmo município, desprovidos de vegetação. Teve como recorte temporal os meses de março, abril e maio de 2013, onde foram realizadas coletas de campo para estimar os valores de temperatura e umidade relativa do ar. Com base nos dados obtidos, realizou-se a análise de variância ANOVA de único fator e teste Tukey, onde constatou-se uma significativa diferença de temperatura fora dos parques e entre os parques. Em seguida, utilizando o método de regressão linear, estimou-se as variáveis temperatura e humidade para o ano de 2026.

  11. Sedimentation survey of Lago La Plata, Toa Alta, Puerto Rico, March–April 2015

    Science.gov (United States)

    Gómez-Fragoso, Julieta

    2016-10-31

    IntroductionLago La Plata is operated by the Puerto Rico Aqueduct and Sewer Authority (PRASA) and is part of the San Juan Metropolitan Water District. The reservoir serves a population of about 425,000 people. During 2013 the reservoir provided 0.307 million cubic meters (Mm3 ) of water per day (about 81 million gallons per day), which is equivalent to 31 percent of the total water demand for the metropolitan area (Wanda L. Molina, U.S. Geological Survey, written commun., 2015). The dam was constructed in 1974 and is located about 5 kilometers (km) south of the town of Toa Alta and 5 km north of the town of Naranjito (fig. 1). The drainage area upstream from the Lago La Plata dam is about 469 square kilometers (km2 ). The storage capacity at construction in 1974 was 26.84 Mm3 with a spillway elevation of 47.12 meters (m) above mean sea level (msl). Storage capacity was increased to 40.21 Mm3 in 1989 after the installation of bascule gates to provide a normal dam pool elevation at 52 m above msl (Puerto Rico Electric and Power Authority, 1979). The maximum height of the dam is about 40 m above the river bottom near the dam, and the intake structure consists of six 1.82-m-diameter ports facing upstream, with 6-m vertical spacing that begins at an elevation of 19 m above msl. The U.S. Geological Survey (USGS), in cooperation with the PRASA, conducted a bathymetric survey of the Lago La Plata reservoir during March and April 2015. The hydrographic survey was designed to provide an update of the reservoir storage capacity and sedimentation rate. Areas with substantial sediment accumulation are also discussed in this report. The results of the survey were used to prepare a bathymetric map showing the reservoir bottom (fig. 2) referenced with respect to the spillway elevation. This report also includes a summary of a previous bathymetric survey conducted in 2006 (Soler-López, 2008).

  12. Vestibular disorders among adults in a tertiary hospital in Lagos, Nigeria.

    Science.gov (United States)

    Somefun, O A; Giwa, O S; Bamgboye, B A; Okeke-Igbokwe, I Irene; Azeez, A A Abdul

    2010-10-01

    Dizziness is not an uncommon complaint in the Otolaryngological clinics among other symptoms. To a large number of practitioners, the treatment of dizziness remains the same irrespective of the etiology, i.e., anti-vertiginous drugs. The objective of this study was to document the evaluation, causes and treatment of vestibular disorders among our patients. The design includes descriptive prospective study conducted in the Oto-rhino-laryngology and Orthopedic Clinics of Lagos University Teaching Hospital, Lagos and Nigerian Army Audiological Centre, 68 Nigerian Army Reference Hospital, Yaba, Lagos, Nigeria. Adult patients referred to the audiology clinic for dizziness had detailed history obtained by using structured questionnaire. General physical and neuro-otological examinations were done. Clinical diagnoses were made on standardized criteria. The patients had hearing evaluation, videonystagmography (VNG) evaluation using infrared videonystagmography system. X-ray of the cervical spine and computerized tomogram scan of internal auditory meatus and brain when indicated were done. A total of 102 patients were seen with age range between 21 and 90 years. Thirty patients (29.4%) recorded average duration of episode of vertiginous attacks in seconds, 69 (67.6%) recorded within minutes to hours and 3 (2.9%) with no definite pattern. Clinical signs on neuro-otological examination were elicited on 39 (38.2%) of the patients while on VNG the vestibular subtest mainly caloric test was abnormal unilaterally and bilaterally in 47 (46.1%) while with the oculomotor subtests, smooth pursuit tests were abnormal in 5 (6.9%), saccade tests were abnormal in 8 (7.8%) and OPK were abnormal in 9 (8.8%). Peripheral vestibular disorders are common of which benign paroxysmal positional vertigo (BPPV) was seen in 29 (28.4%), Meniere's disease in 22 (21.6%), recurrent vestibulopathy in 20 (19.6%), cervical vertigo in 18 (17.6%), psychogenic vertigo in 2 (2%), vestibular schwannoma

  13. Crisis ambiental en el lago de Chapala y el abastecimiento para Guadalajara

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    Juan M. Durán J.

    2003-01-01

    Full Text Available Este artículo se centra en la crisis ambiental que genera el modelo urbano- industrial en el uso del agua por una sociedad demandante de este recurso directa o indirectamente para sus servicios, así como, por una agricultura subordinada al eje industrial que se ha generado a lo largo de la cuenca, en particular entre el lago de Chapala y Guadalajara, como resultado de las políticas y de las relaciones de poder de los actores sociales que intervienen en el uso, control y distribución de este recurso que ha sido considerado como un bien renovable e imperecedero el cual siempre estará ahí cuando se le necesite

  14. Assessment of Subsurface Conditions in a Coastal Area of Lagos using Geophysical Methods

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    K. F. Oyedele

    2015-12-01

    Full Text Available An integrated geophysical and geotechnical survey was carried out at Magodo Estate, Lagos, Nigeria. The buildings in this area are either sinking or intensively affected by severe cracks showing structural instability. The survey was aimed at characterizing the shallow subsurface in order to delineate features that may have caused structural instability that led to cracking and sinking of the residential buildings in the area. To image the subsurface, resistivity profiling (2-D using a Wenner array and Cone Penetration Test (CPT was carried out on five profiles of length 180 m each. The acquired data were processed and interpreted integrally to image the shallow geotechnical setting of the site. Integrated interpretation led to the delineation of low resistivity, low bearing capacity clay which is identified as the main cause of instability that resulted in potentially dangerous cracking and sinking of residential buildings in the area.

  15. Sedimentation survey of Lago Loíza, Trujillo Alto, Puerto Rico, July 2009

    Science.gov (United States)

    Soler-López, Luis R.; Licha-Soler, N.A.

    2014-01-01

    Lago Loíza is a reservoir formed at the confluence of Río Gurabo and Río Grande de Loíza in the municipality of Trujillo Alto in central Puerto Rico, about 10 kilometers (km) north of the town of Caguas, about 9 km northwest of Gurabo, and about 3 km south of Trujillo Alto (fig. 1). The Carraizo Dam is owned and operated by the Puerto Rico Aqueduct and Sewer Authority (PRASA), and was constructed in 1953 as a water-supply reservoir for the San Juan Metropolitan area. The dam is a concrete gravity structure that is located in a shallow valley and has a gently sloping left abutment and steep right abutment. Non-overflow sections flank the spillway section. Waterways include an intake structure for the pumping station and power plant, sluiceways, a trash sluice, and a spillway. The reservoir was built to provide a storage capacity of 26.8 million cubic meters (Mm3) of water at the maximum pool elevation of 41.14 meters (m) above mean sea level (msl) for the Sergio Cuevas Filtration Plant that serves the San Juan metropolitan area. The reservoir has a drainage area of 538 square kilometers (km2) and receives an annual mean rainfall that ranges from 1,600 to 5,000 millimeters per year (mm/yr). The principal streams that drain into Lago Loíza are the Río Grande de Loíza, Río Gurabo, and Río Cañas. Two other rivers, the Río Bairoa and Río Cagüitas, discharge into the Río Grande de Loíza just before it enters the reservoir. The combined mean annual runoff of the Río Grande de Loíza and the Río Gurabo for the 1960–2009 period of record is 323 Mm3. Flow from these streams constitutes about 89 percent of the total mean annual inflow of 364 Mm3 to the reservoir (U.S. Geological Survey, 2009). Detailed information about Lago Loíza reservoir structures, historical sediment accumulation, and a dredge conducted in 1999 are available in Soler-López and Gómez-Gómez (2005). During July 8–15, 2009, the U.S. Geological Survey (USGS) Caribbean Water Science

  16. Inventory of antidiabetic plants in selected districts of Lagos State, Nigeria.

    Science.gov (United States)

    Gbolade, Adebayo A

    2009-01-12

    This study reports an ethnobotanical survey by means of semi-structured questionnaire of medicinal plants in five districts of Lagos State of Nigeria reputed for the treatment of diabetes. 100 respondents from the predominantly Yoruba tribe mostly males (76%) were knowledgeable in traditional treatment of diabetes. About half of the respondents with 20-30 years experience in treating diabetes used mainly herbs (96%) and have developed effective and easily recognised diagnostic tools. 92% of diabetic patients were usually out-patients aged 21-60 years. Diabetes trado-specialists (80%) rarely referred their patients but usually treated referred cases (96%). Fifty multi-component herbal recipes covered in the survey were mainly liquid preparations often administered without serious side effects (92%). The principal antidiabetic plants included Vernonia amygdalina, Bidens pilosa, Carica papaya, Citrus aurantiifolia, Ocimum gratissimum, Momordica charantia and Morinda lucida. Dietary recommendations also accompanied therapy.

  17. An Evaluation of Industrial Facilities Defects in Selected Industrial Estates in Lagos State, Nigeria

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    Oseghale, G.E.

    2014-01-01

    Full Text Available The study appraised the state of industrial facilities in selected industrial estates established between 1957 and 1981 in Lagos State by examining the nature and causes of facilities’ defects in the selected industrial estates. The buildings sampled were load bearing sandcrete block wall (1%, concrete framed structure (83% and steel framed structure (16%. Data were sourced using structured questionnaire administered on the staff of maintenance department of 35 building materials and plastic manufacturing industries purposively selected and located in 18 industrial estates. Data obtained were analyzed using descriptive statistic. The study found the structural elements of the buildings, i.e. foundations, beams, walls, and floors satisfactory. Using the mean response analysis, the result showed that the most severe factors responsible for industrial facilities’ defects were combined effects of geo-climatic factors (2.35, combined effects of biological agencies (2.15, corrosion (1.98, and physical aggression on the facilities (1.71.

  18. Trip to Lago Nero (Tusco-Emilian Apennine, Italy): How has our Apennine been changing?

    Science.gov (United States)

    Papini, Piera; Vergari, Simone

    2014-05-01

    The sharp division of disciplines in Italian Secondary school is a problem which hinders the natural learning of pupils. At the end of the 1st education cycle, candidates must stand six written tests and an oral exam during which they present a topic that includes a lot of disciplines and that they develop unifying what they have been taught fragmentarily. Climate changes that are taking place and the use of Earth resources are a significant topic suitable for a multidisciplinary as well as interdisciplinary approach. Thanks to the Region of Tuscany, which has financed the Educational Contract " An agreement for water" (2012-2015), we could develop this module which involves 14 years old students and is focused on the climate change evidence in a lake, Lago Nero, originated in the Tusco-Emilian Apennine during the development of an ancient Wurmian glacier. The didactical path includes: - lessons in the classroom on weather, climate and climate changes caused both by nature and by man. - A focus on Lago Nero - A trip to Lago Nero, observation of the landscape geomorphology: differences between fluvial valleys and glacial valleys, signs of remote events such as roche mountonnée or recent ones such as landslides and floods caused by intense rainfalls. Collection of samples. - Participation at a conference organized by the Region at San Giorgio Library in Pistoia ( http://rinnoviamoci2011.blogspot.it/ ) during which students met some administrators and talked with them. A video made by the pupils was presented on this occasion. http://www.icsfrankcarradori.it/studenti/ Further activities include: - Open day for families of the younger pupils, during which older pupils explained some of the activities carried out, included the module on Lago Nero. - identification of minerals (connection with Chemestry) - identification of rocks outcropping in the area of the lake: what do they tell about geologic history of our mountains? How can they reveal the age of a geologic

  19. A pesca de pequena escala no Lago Paranoá Brasília, DF, Brazil

    OpenAIRE

    Walter, T.; Petrere Jr., M.

    2007-01-01

    Em muitos centros urbanos, com corpos d'água apropriados, as pescarias de pequena escala são a única fonte de proteína barata para os pobres. No Lago Paranoá, localizado em Brasília, a atividade pesqueira foi estudada através de entrevistas com 53 pescadores que vivem em cidades satélites, de Março/1999 a Março/2000, em três comunidades pesqueiras. Nesse período os pescadores viviam nas cidades satélites em média há 21,7 anos (s = 9,6 anos), com famílias de 4,9 membros (s = 3,6) e 44,2% deles...

  20. Design of a residential microgrid in Lagos del Cacique, Bucaramanga, Colombia

    Science.gov (United States)

    Bellon, D.; González Estrada, O. A.; Martínez, A.

    2017-12-01

    In this paper is presented a model that analyses the options to provide energy to an interconnected house in Lagos del Cacique, Bucaramanga, Colombia. Three power supplies were considered: photovoltaic, 1 kW wind turbine, and a 2.6kW gasoline generator, as well as a battery for energy storage. The variables considered for the sensitivity analysis correspond to the price of gasoline and the variation in loads. The simulation results suggest an optimal configuration of microgrids in generator-photovoltaic panel-battery. Sensitivity variables were specified in order to evaluate the effect of uncertainty. The simulation was done through the Homer software and the results of the combinations of sources are suggestions of the same.

  1. The understanding and acceptability of assisted reproductive technology (ART) among infertile women in urban Lagos, Nigeria.

    Science.gov (United States)

    Fabamwo, A O; Akinola, O I

    2013-01-01

    This descriptive study was carried out to assess the awareness and acceptability of Assisted Reproductive Technology (ART) among infertile women in Lagos, Nigeria. Self-administered questionnaires on the knowledge of ART in the women were used. After a brief exposé on ART, questions relating to their attitude were answered. A total of 166 women were studied. Only 51.8% had any knowledge of ART and most of these had poor knowledge. A total of 137 women would embrace ART if offered but 29 would not, for reasons such as religion, fear of side-effects, failure and unaffordable costs. There is a paucity of good knowledge of ART. A significant number of the women would consider ART if offered. There is thus a need to create more awareness about the possibilities offered by ART, as well as instituting low cost ART strategies in developing world countries.

  2. Malarone treatment failure and in vitro confirmation of resistance of Plasmodium falciparum isolate from Lagos, Nigeria

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    Warhurst David C

    2002-02-01

    Full Text Available Abstract We report the first in vitro and genetic confirmation of Malarone® (GlaxoSmithKline; atovaquone and proguanil hydrochloride resistance in Plasmodium falciparum acquired in Africa. On presenting with malaria two weeks after returning from a 4-week visit to Lagos, Nigeria without prophylaxis, a male patient was given a standard 3-day treatment course of Malarone®. Twenty-eight days later the parasitaemia recrudesced. Parasites were cultured from the blood and the isolate (NGATV01 was shown to be resistant to atovaquone and the antifolate pyrimethamine. The cytochrome b gene of isolate NGATV01 showed a single mutation, Tyr268Asn which has not been seen previously.

  3. The impact of the Lagos manual vacuum aspiration (MVA) training courses on medical education.

    Science.gov (United States)

    Ogedengbe, O K; Giwa-Osagie, O F; Usifoh, C A; Solanke, O

    1998-01-01

    The Department of Obstetrics and Gynaecology, College of Medicine, University of Lagos commenced training programmes in the use of manual Vacuum Aspiration (MVA) for the treatment of septic abortion in 1989. The courses were evaluated using pre-tests and post-tests, and those of the participants from the first 5 years were analysed. 142 doctors and 72 nurses were trained from teaching hospitals, parastatal and private hospitals. The results of 154 participants (71%) were recovered and analysed. The training courses significantly increased the medical knowledge of both doctors and nurses; those from the Teaching Hospitals appearing to gain more. The amount of knowledge gained by those from the private sector, although showing a statistically significant increase was much less than the other participants. More emphasis should be placed on improving the performance of those from the private sector.

  4. Accessibility and Utilization of Internet Service by Graduate Students in University of Lagos, Nigeria

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    Oyeronke Olufunmilola Ogunlade

    2012-07-01

    Full Text Available The major objective of the study was to examine the accessibility and utilization of Internet service by graduate students in university of Lagos, Nigeria. Specifically, the study made effort to determine the extent to which Internet service was accessible to staff and students of the university, how point of Internet access influenced its usage, factors motivating the use of Internet and what Internet was used for by graduate students in University of Lagos. The study adopted a descriptive survey design and data were collected by administering questionnaires to two hundred respondents randomly selected from faculty of Education in the University. Results of the findings revealed that students didn’t have as much access to Internet service as the staff (27.7 % and 62.4 % respectively. 47.9 % of respondents strongly agreed to visiting the cybercafé to access Internet. 53.1 % and 50.2 % of the respondents strongly agreed that proximity to cybercafé and valid information contained from the Internet were their major motivating factors for surfing the Internet. It also found that the respondents strongly agreed that the purposes for their surfing the Internet were to register courses, enroll for exams, gather information for literature review, send and receive mails, amongst others. Based on the findings, it is therefore recommended that since the Internet is being utilized in every sector such as Education, Banking, Medicine and others, the University should make Internet service assessible for students’ use. This study can further be conducted in other institutions in Nigeria.

  5. Trend of childhood TB case notification in Lagos, Nigeria, 2011-2014

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    Olusoji James Daniel

    2015-01-01

    Full Text Available Background: Childhood tuberculosis (TB has been neglected by national TB programs in sub-Saharan Africa because of the emphasis on adult smear-positive TB cases. About 80,000 HIV children die from TB, and over 550,000 childhood TB cases occur annually, representing 6% of the global TB burden, making TB an important cause of morbidity and mortality in children. Thus, this study assessed the trend of childhood TB cases notified in Lagos, Nigeria from 2011 to 2014. Methods: Retrospective data review of childhood TB cases notified to the Lagos State TB and Leprosy Control Programme (LSTBLCP between January 1, 2011 and December 31, 2014. Results: A total of 2396 children were treated for all forms of TB representing 6.8% of the total 35,305 TB cases notified during the study period. This constituted 1102 (46% males and 1294 (54% females. There was a progressive increase in the proportion of children treated for TB from 495 (5.9% in 2011, 539 (6.4% in 2012, 682 (7.2% in 2013 and 680 (7.6% in 2014. Of the total childhood TB cases notified, 16.3–20% were new sputum pulmonary smear positive; 68.2–74.6% were new sputum pulmonary smear negative; while extra-pulmonary TB accounted for 6.7–10.6%. The case notification rate (CNR of childhood TB per 100,000 increased from 13.4 in 2011, 14.3 in 2012, 17.7 in 2013 and 17.2 in 2014. Conclusion: There was an increase in the case notification rate of TB among children between 2011 and 2014. Efforts should be made to sustain this increasing trend.

  6. CLUSTERING AND THE NATURE OF RELATIONSHIP AMONGST FIRMS IN THE LAGOS REGION, NIGERIA

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    FAGBOHUNKA Adejompo

    2015-06-01

    Full Text Available Regional cluster, a geographically bounded concentration of interdependent firms, is the best environment to fostering a strong relationship amongst firms which can lead to amazing technological and industrial expansion. This paper underscores clustering and the resultant nature of relationship amongst firms, using the Lagos region as a case study. One hundred and three questionnaire were administered in twelve industrial estates; one questionnaire in each of the firm. This connotes that all the firms in the industrial estates were successfully covered in the questionnaire administration, which was administered. A descriptive statistical analytical technique was adopted. The paper has reveals the types of working relationship amongst firms in the Lagos region which includes; raw materials purchase, subcontract, collaboration in research and development, sales promotion, transportation, power supply, water supply, security, waste treatment, telecommunication, ports and shipping as well as labour supply. The paper found out that raw materials purchase/supply was more striking amongst the working relationship types. Also, the paper has revealed services sharing amongst the firms and transport as the most dominant. The most important location advantage was the market facilities. The analysis of variance carried out in relation to variation in clustering amongst the firms at 0.05% level was significant. The paper concluded that industrial cluster if encouraged, will lead to increase working relationship, which in turn have the capability of boosting, promoting and encouraging economies of clustering. Cluster concepts spatially emphasize inter-firm relations that facilitate innovative activity, which is recognized as a driving force of sustained economic growth. It is therefore recommended that these clustering of firms should be made viable, encouraged and strengthened through government investment in the industrial sector, making the location

  7. An audit of parental satisfaction of pediatric day case surgery at the Lagos University Teaching Hospital

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    Olumide A Elebute

    2014-01-01

    Full Text Available Background: In recent past, there has been a gradual increase in the volume of patients treated on a day case basis in our center. However, no study has been conducted to audit pediatric day case surgery practice at the Lagos University Teaching Hospital. Objectives: To determine the level of parental satisfaction with pediatric day case surgery at the Lagos University Teaching Hospital. Patients and Methods: A total of 101 parents or the patient′s caretakers whose wards had day case surgery were administered a self-completed questionnaire on the first postoperative day visit at the surgical outpatient clinic. The questions assessed parental satisfaction with the following: (a Communication with doctors (surgeons and anesthesiologists, (b Physical conditions of the theatre environment, (c Staff′s care, (d Need to care for the child at home, and (e Postoperative complication. Result: There were 101 respondents with an age range of 22-56 years (mean 35.05 ± 6.85. Eighty-seven (86% of the respondents were satisfied with the amount of information they obtained from their doctors before the operation; 43 (42.6% were satisfied with the waiting time, whereas 47 (46.5% were satisfied with the fasting time. However, 26 (25.7% of the respondents were dissatisfied with the waiting room environment and 87 parents (87.1% were dissatisfied with the nursing care. Conclusion: Most parents are satisfied with pediatric day case surgery care. Some adjustments, however, need to be made on reducing the waiting and fasting time of the patients and improving both the waiting room environment and the nursing care in order to increase its acceptance.

  8. Himalomycin A and cycloheximide-producing marine actinomycete from Lagos Lagoon soil sediment

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    Davies Olabisi Flora

    2015-05-01

    Full Text Available Objective: To isolate and screen Actinomycetes from Lagos Lagoon soil sediments for antibiotic production. Methods: Soil samples were collected from four different locations of Lagos Lagoon and were dried for 2 weeks. Actinomycetes were isolated by serial dilution using spread plate method on starch casein and Kuster’s agar supplemented with 80 μg/mL cycloheximide to prevent fungal growth. The plates were incubated at 28 °C for 1-2 weeks. Isolates were selected based on their cultural characteristics as well as their Gram’s reaction and subcultured on same media for isolation and incubated at 28 °C for 3 days. Pure cultures were maintained on nutrient agar slants at 4 °C. Thereafter, they were inoculated into starch casein and Kuster’s broth media and incubated at 28 °C for 8 days. The resulting crude extracts were screened for antimicrobial activity against the following microorganisms: methicillin resistant Staphylococcus aureus, Staphylococcus aureus ATCC 29213, Escherichia coli ATCC 29522, Pseudomonas aeruginosa ATCC 27853, Candida albicans and Enterococcus faecalis ATCC 29212. Coagulasenegative staphylococci isolated from HIV patients were also used (Staphylococcus warneri, Staphylococcus xylosus and Staphylococcus epidermidis. Extraction of secondary metabolites was carried out and analysed using gas chromatography-mass spectrometer. Results: All the isolates displayed varying antimicrobial activity against at least one of the test organisms. Himalomycin A was identified in the extract from isolate ULS7. The gas chromatography-mass spectrometer data analysis showed the antibiotic profile of these isolates. Conclusions: The isolate ULS7 was found to display the highest antimicrobial activity against the test organisms.

  9. Contraception among bankers in an urban community in Lagos State, Nigeria.

    Science.gov (United States)

    Meka, Ijeoma Angela; Okwara, Emmanuel Chidiebere; Meka, Anthony Obiamaka

    2013-01-01

    Contraception means procedures employed to interfere at one stage or the other with the normal sequence of events in the process of reproduction leading to a failure in conception. It means voluntary techniques adopted to achieve birth control. Its use remains sensitive worldwide. Within the same society, contraception varies amongst people of different socio-cultural, educational, religious, or occupational affiliations. It also varies between urban and rural settlements. Some contraceptive techniques also prevent sexually transmitted infections (STIs). The prevalence of STIs also varies with these same factors. There is very limited literature on contraception exclusively amongst bankers. We sought to investigate the level of awareness and practice of contraception amongst bankers in an urban society in Lagos State, Nigeria. In this descriptive cross-sectional study, 200 self-administered structured questionnaires were retrieved from bankers from 5 banks selected by simple random sampling in Surulere Local Government Area of Lagos State, Nigeria. Data was subsequently statistically analyzed using SPSS. The age range was 21-45 years, mean 28.8±1.4 years, 51.7% were males (72% single, 27% married, 1% separated) and 48.3% were females (52.4% single, 47.6% married). All (100%) respondents were aware of contraception, 93.3% males and 91.7% females were sexually active, 88.9% males and 84.5% females believe contraception is useful. Most (71.4%) respondents practice contraception, males (81%) being more than females (61.1%), p males believe that contraception prevents pregnancy but not STIs, 28.6% of females and 46.6% of males believe it prevents both pregnancy and STIs, whereas 14% of males and no female believe contraception prevents STIs but not pregnancy. The awareness of and practice of contraception was very high among the bankers but more male bankers practice contraception whereas more female bankers perceive contraceptives to be for the married only.

  10. Detection of toxigenic Clostridium perfringens and Clostridium botulinum from food sold in Lagos, Nigeria.

    Science.gov (United States)

    Chukwu, Emelda E; Nwaokorie, Francisca O; Coker, Akitoye O; Avila-Campos, Mario J; Solis, Rosa L; Llanco, Luis A; Ogunsola, Folasade T

    2016-12-01

    Food-borne diseases contribute to the huge burden of sickness and death globally and in the last decade, have become more frequently reported in Africa. In line with this, food safety is becoming a significant and growing public health problem in Nigeria. Diarrhoea is a common problem in Nigeria and has been reported but there has been little data on the possibility of clostridia as aetiological agents. Clostridium species are ubiquitous in the environment and in the gastrointestinal tract of man and animals and can serve as a marker for faecal contamination. We set out to determine the potential of these foods to transmit Clostridium species. A total of 220 food commodities from six local governments in Lagos State were sampled. Isolates obtained were identified based on cultural, morphological and biochemical characteristics. Toxinotyping was done using multiplex-PCR with primers specific for alpha, beta, epsilon and iota-toxin genes, enterotoxigenic cpe gene and neurotoxigenic BoNt gene. Fifty (22.7%) clostridial species were isolated of which 29 (58%) were identified as C. perfringens. Toxinotyping of the 29 strains showed that 28 (96.6%) were toxin producing C. perfringens type A while one (3.4%) was C. perfringens type D. Two (4%) C. botulinum species were isolated and identified by 16S rRNA sequencing, both harbouring BoNt/A gene. The contamination rates of food with Clostridium species show that food hygiene is a problem and Clostridium species may be a source of food borne disease in Lagos State, Nigeria. Copyright © 2016 Elsevier Ltd. All rights reserved.

  11. Knowledge, opinions, and practices about oral cancer among general medical practitioners in Lagos, Nigeria

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    Olalekan Micah Gbotolorun

    2015-01-01

    Full Text Available Objectives: To evaluate the knowledge and practices of general medical practitioners (GMPs in Lagos on screening for oral cancer (OC. Materials and Methods: A 43-item self-administered questionnaires was filled by each GMPs recruited into the study. Analysis was done using the SPSS version 17.5. Descriptive analyses were used and results were presented in percentages, graphs, and tables. Results: One-hundred and twenty GMPs participated in the study, 58.7% were males and 41.3% females; their ages ranged 22-61 years (36.1 ΁ 7.97. While most participants answered correctly that smoked tobacco (96.1%, increasing age >45 years (97%, oral sex (99%, and patient with a previous OC (93.7% were risk factors for OC; there was misinformation on the nonrisk factors as only 5.5%, 7.9%, and 18.9%, respectively, answered correctly that family history of cancer, dental infections, and poor oral hygiene were not identifiable risk factors associated with OC. Furthermore, although majority of subjects (81.1% identified the floor and the tongue as the most common sites of OC and leukoplakia (75.6% as a common precursor of OC; only 29.1% identified correctly that OC had one of the worst morbidity and mortality rates of the most common cancers due to late presentation. Only 0.8% of GMPs had a consistent high score in the indexes. Conclusion: The knowledge and practices of GMPs in the Lagos environment on OC needs a lot of improvement for them to become significant in the screening for the disease entity.

  12. Prevalence and pattern of amblyopia among primary school pupils in Kosofe town, Lagos state, Nigeria.

    Science.gov (United States)

    Ikuomenisan, Segun Joseph; Musa, Kareem Olatunbosun; Aribaba, Olufisayo Tade; Onakoya, Adeola Olukorede

    2016-01-01

    The objective of this study was to determine the prevalence and pattern of amblyopia in primary school pupils in Kosofe town of Lagos State with a view to providing baseline data that may facilitate the establishment of routine school eye screening programs in primary schools in Lagos State. A descriptive, cross-sectional study was conducted among pupils from public and private primary schools in Kosofe town. The pupils underwent visual acuity assessment with the HOTV charts, detailed ocular examinations and cycloplegic refractions. Data obtained were analysed using the Statistical Package for Social Sciences version 20.0. A total of 1702 pupils participated in the study, out of which 899 (52.8%) were males. The age range was 4-16 years with 1630 (95.8%) pupils within the ages of 4 and 10. Amblyopia was detected in 24 (1.4%) of the screened pupils (95% confidence interval = 0.610-0.914). There was no significant sex predilection (P = 0.367) or age trend (P = 0.158) in this study although amblyopia occurred more in boys (54.2%). Refractive amblyopia (58.4%) was the most common type of amblyopia out of which anisometropic amblyopia accounted for 78.6%. Unilateral amblyopia was observed in 87.5% of the amblyopic pupils, and the left eye was more commonly affected than the right eye. All the types of amblyopia were more common within the age group of 4-10 years and in public school children (P = 0.039 and P = 0.015, respectively). The prevalence of amblyopia in this study was low and it falls within the general prevalence range for amblyopia in Nigeria.

  13. Issues surrounding HIV status disclosure: Experiences of seropositive women in Lagos, Nigeria

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    Oluwaseun E Oseni

    2017-01-01

    Full Text Available Background: Disclosure of human immunodeficiency virus (HIV seropositivity by infected women is crucial in HIV control. To determine the rates, patterns, effects, and determinants of disclosure of status among HIV-positive women in Lagos, Nigeria. Methods: This was a descriptive cross-sectional study. Simple random sampling method was used to select 364 HIV-positive women accessing care in HIV treatment centers in Lagos Island. Data were collected using interviewer-administered questionnaires and analyzed with Epi Info (version 3.5.3. Inferential statistics done was Chi-square test and level of statistical significance was set at <5%. Results: Mean age of respondents was 37.3 ± 3 years, and most were married or cohabiting in monogamous families. The disclosure rates were 81.9% to anyone (excluding a health care professional; 60.4% to spouse/sexual partners; and 67.7% disclosed on the same day of diagnosis. Main reasons for disclosure were failing health (49.3% and a sense of responsibility to the spouse/sexual partner (33.6%. Major reasons for nondisclosure were negative public opinion (84.8% and fear of losing relationships (40.3%. Positive reactions following disclosure were mostly acceptance: 75.2% (family member and 72.3% (spouse/sexual partner while blame was the main negative outcome. Longer duration of diagnosis significantly improved disclosure to anyone (P < 0.001. Older age (P < 0.001 and awareness of spouse/sexual partner's HIV status (P < 0.001 significantly improved disclosure to spouse/sexual partner. Conclusions: Many respondents had not disclosed their status and require support and counseling to do so. Community education regarding stigmatization should be intensified.

  14. Toxoplasma gondii infection: seroprevalence and associated risk factors among primary schoolchildren in Lagos City, Southern Nigeria

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    Vincent Pam Gyang

    2015-02-01

    Full Text Available INTRODUCTION: Toxoplasma gondii infection has been described as the most widespread zoonotic infection of humans and other animals. Information concerning T. gondii infection among schoolchildren is unavailable in Lagos City, Nigeria. METHODS: This cross-sectional study investigated the seroprevalence and risk factors associated with T. gondii infection among primary schoolchildren (PSC from a community located in the center of Lagos, southern Nigeria, from November 2013 to March 2014. A total of 382 PSC were screened for the presence of sera anti-T. gondii antibodies using a latex agglutination test (TOXO Test-MT, Tokyo, Japan. A cutoff titer of ≥ 1:32 was considered positive, while titers ≥ 1:1,024 indicated high responders. Questionnaires were also used to obtain data on possible risk factors from parents/guardians. RESULTS: The overall seroprevalence was 24% (91/382, and 83.5% (76/91 of seropositive PSC were classified as high responders. Among the risk factors tested, including contact with cats and soil, consumption of raw meat and vegetables, and drinking unboiled water, none showed statistical significance after multivariate adjustment. No associations were observed among age, gender, body mass index (BMI, and parents' occupation/educational level. CONCLUSIONS: The findings in this study show evidence of active infection, and hence, there is need for urgent preventive measures in this city. Further investigation is required to clarify the transmission routes. Policy makers also need to initiate prevention and control programs to protect pregnant women and immunocompromised patients in particular because they are more severely affected by T. gondii infection.

  15. Organochlorines in Chrysichthys nigrodigitatus and Liza grandisquamis from Lagos Lagoon and Agboyi Creek, Nigeria

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    A. B. Williams

    2015-07-01

    Full Text Available Catfish (Chrysichthys nigrodigitatus and mullet (Liza grandisquamis were sampled from Lagos Lagoon and Agboyi Creek and analysed for alpha-BHC, beta-BHC, lindane, delta-BHC, heptachlor, heptachlor-epoxide (B, aldrin, dieldrin, endrin, endrin aldehyde, endrin ketone, cis-chlordane, trans-chlordane, endosulfan 1, endosulfan 11, endosulfan sulphate, methoxychlor, p,p´-DDE, p,p´-DDD and p,p´-DDT. Sampling was conducted four times at the designated sites during the dry season months of December 2008 and February 2009 and the wet season months of May and September 2009. The muscle tissues and organs of the finfishes were subjected to cold extraction with petroleum ether/acetone (1:1 v/v mixture and clean-up on silica gel adsorbents. A gas chromatograph coupled with electron capture detector (GC-ECD was used to detect and determine the organochlorines. The residue levels of the fishes were higher in the Lagos Lagoon than in Agboyi Creek while a higher concentration of the residues was observed during the dry season. The female fishes accumulated higher organochlorines than the male fishes. The order of residue accumulation in the organs of the fishes was gills > livers > large intestines > small intestines > kidneys > muscles. The dietary surveys indicated that the amount of fishes consumed ranged from 20 to 200 g/day, with a mean value of 40 g/day. The estimated daily intakes of the organochlorines were within the acceptable daily intakes while the levels of residues in the fishes were within the permissible residue limits.

  16. Evaluation of Energy Use in Public Housing in Lagos, Nigeria: Prospects for Renewable Energy Sources

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    Isidore Chukwunweike Ezema

    2016-02-01

    Full Text Available Even though domestic energy can be from either renewable or non-renewable sources, the former is preferred because of its role in reducing both the operational energy intensity and carbon footprint. Given the positive role renewable energy plays in the energy mix, this paper examined the pattern of operational energy use with particular reference to the renewable and non-renewable energy content in medium and high density public residential buildings in Lagos, Nigeria. A survey research method was adopted for primary data collection while data analysis was by descriptive statistics. The study found that renewable energy use in the residential units is very low. In contrast, there was high dependence of the occupants on non-renewable direct fuel combustion through the use of fossil fuel-driven privately-owned electricity generators for electricity supply as a result of the inadequate supply from the national grid. In addition to the relatively high operational energy intensity observed in the studied buildings, the findings have implications for the safety, health and wellbeing of the building occupants as well as for carbon emissions from the buildings and for overall environmental sustainability. Recommendations to increase renewable energy use in new buildings and as retrofits in existing buildings were made. Article History: Received Oct 18, 2015; Received in revised form January 14, 2016; Accepted January 30, 2016; Available online How to Cite This Article: Ezema, I.C., Olotuah, A.O., and Fagbenle, O.I, S. (2016 Evaluation of Energy Use in Public Housing in Lagos, Nigeria: Prospects for Renewable Energy Sources. Int. Journal of Renewable Energy Development, 5(1,15-24. http://dx.doi.org/10.14710/ijred.5.1.15-24 

  17. A Science Centre as a Geoturism promoter - the Lagos Ciência Viva examples (Portugal).

    Science.gov (United States)

    Azevedo Rodrigues, Luis; Leote, Catarina

    2017-04-01

    Science outreach and engagement are crucial core objectives of the Lagos Ciência Viva Science Centre (CCVL). By engaging audiences in the real world a link is made between their science centre experience and the environment in which they live. Therefore, it has been an option of the CCVL to offer geological outdoor activities, both in the natural environment and urban context. Dinosaurs are an appealing science subject for both students and tourists. Thus, the CCVL has a long tradition in organizing and guiding field trips to two dinosaur track sites - Salema and Santa beaches (Vila do Bispo, southwest Algarve). These sites, both from the Lower Cretaceous reveal at least two types of tracks - theropod and iguanodontian footprints. Often in combination with the paleontology field trips, the CCVL also offers different geological field trips both for formal (school) and informal (tourism) education. This allows students and tourists to be introduced to dinosaur paleobiology and ichnology and to the structural geology and stratigraphy of the area. Our science outreach is being further developed by contractual agreement with a regional tour operator, in which the CCVL is responsible for the scientific content and guidance of the visits. Aiming at an urban context, the CCVL produced three Urban Geology and Paleontology Guide Books for three Algarve cities (Lagos, Faro and Tavira), which can be acquired in the three Ciência Viva Science Centres shops as well as in the tourist information offices serving this way as a basis for guided urban tours also offered by the CCVL. Based on our experience, we review and contextualise these geoscience activities and their potential for science outreach, communication and tourism. We discuss and propose a classification of different possibilities in geoscience communication and outreach based on three vertices: Science, Heritage and Geotourism. Some particularities of these visits, such as the merge between geosciences and other

  18. Assessment of radiofrequency power density distribution around GSM and broadcast antenna masts in Lagos City, Nigeria.

    Science.gov (United States)

    Ibitoye, Z A; Aweda, A M

    2011-01-01

    Global system of mobile communication (GSM) and other telecommunication technologies are now common place in Lagos state Nigeria. The introduction of GSM in 2002 considerably increased radiofrequency (RF) radiation exposure of the public from telecommunications transmitting and receiving antennae. The RF radiation emanating from these devices, if above international limits may pose health risk to the public. There is need for database of RF distribution level in Nigeria for safety assessment. The purpose of this study is to determine power density around different telecommunications antenna base stations and compare the measured values with the international recommended exposure limits in order to assess the safety of the members of the public. A radiofrequency meter, Electrosmog from LESSEMF USA was used for the measurement. It is a highly sensitive device capable of measuring frequency between 50 MHz and 3.5 GHz. Measurements were taken at distances of 25, 50, 100, 150 and 200 m from selected antenna base stations in Lagos state. The results were compared with the International Commission of NonIonizing Radiation and Protection (ICNIRP) and the Institute of Electrical and Electronics Engineering/American National Standard Institute (IEEE/ANSI). Power densities obtained varied between 0.219 and 302.40 mW.m(-2) from the studied base stations. Comparison of the results with the ICNIRP and IEEE/ANSI recommended safety standards of 12000 mW x m(-2) and 5700 mW x m(-2) showed that the exposure levels are very low. Power densities of the RF radiation from telecommunication transmitting/receiving antennae were far below international standard limits. The measured values are not likely capable of inducing significant hazardous health effects among the people that are at least 6 m away from the antennae.

  19. Cognição e paisagem no processo civilizatório andino: a matriz do lugar como chave para decifrar Machu Picchu

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    Rualdo Menegat

    2010-06-01

    Full Text Available Este trabalho investiga as relações entre a paisagem andina e a construção das cidades incaicas de Machu Picchu e Ollantaytambo no vale do rio Vilcanota-Urubamba, na região de Cusco, Peru. Por meio de técnicas da Ecologia de Paisagem, Geologia e Geomorfologia, estabeleceu-se a matriz do lugar da região em termos de uma rede de falhas tectônicas e as formas das montanhas e blocos rochosos resultantes da erosão. Procura-se mostrar que as cidades incaicas foram propositadamente situadas em locais de cruzamento de falhas geológicas, onde as condições do meio rochoso propiciaram a construção de cidades em locais elevados e estrategicamente seguros frente às condições inóspitas dos Andes centrais.

  20. La enseñanza de la ética periodística y el autocontrol: convergencias de cinco países andinos

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    María Luján González Portela

    2010-09-01

    Full Text Available La necesidad de conjugar la libertad de expresión de que gozan los medios de comunicación, con la responsabilidad que la sociedad está en obligación de exigirles, es una de las mayores preocupaciones de los estudiosos de la ética de la comunicación y otros investigadores. La autora señala que el autocontrol y la autorregulación ética sustentada en el enfoque que aporta el derecho a la información, es la mejor manera de articular esas dos caras de la misma moneda como son la libertad y la responsabilidad de la prensa.

  1. Equipo para el lavado ecológico del café con mucílago degradado con fermentación natural

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    C.E. Oliveros-Tascón

    2011-06-01

    Full Text Available Se evaluó un lavador de flujo vertical ascendente de granos de café y descarga radial de fluidos. Se utilizó un diseño factorial 2x3, dos flujos de café lavado (1.250 y 1.750 kg.h-1 y tres caudales de agua (3, 4 y 5 L.min-1, con 5 unidades experimentales por tratamiento. El mejor desempeño del equipo se obtuvo con flujo de café lavado de 1.750 kg.h-1 y caudal de agua de 5 L.min-1, alcanzando remoción de mucílago de 95,11%, consumo específico de agua de 0,32 L.kg cps-1, daño mecánico de 0,51% y potencia específica de 1,01 W.h. kg-1de café lavado./ An up-flow coffee-bean washer with radial fluids discharge was evaluated following a 2 by 3 factorial design; two washed coffee bean flow rates (1.250 and 1.750 kg.h-1 and three water flow rates (3, 4 and 5 L.min-1, with 5 experimental units per treatment. The best performance of the equipment was obtained with a washed coffee bean flow of 1.750 kg.h-1 and a water flow rate of 5 L.min-1, reaching mucilage removal of 95,11 %, specific water consumption of 0,32 L.kg cps-1, mechanical damage of 0,51 % and specific power requirement of 1,01 W.h. kg-1 of washed coffee.

  2. Teoría de las restricciones (TOC) y la mecánica del Throughput Accounting (TA) Una aproximación a un modelo gerencial para toma de decisiones: caso compañía de Cementos Andino S.A.

    OpenAIRE

    González G., Patricia; Universidad del Valle; Escobar V., John Willmer; Pontificia Universidad Javeriana Cali

    2008-01-01

    El objetivo de este artículo es explicar a los lectores cómo a partir del modelo de decisión propuesto por la TOC y el TA, los gerentes pueden tomar las mejores decisiones orientadas a maximizar las utilidades del negocio. Para el logro del objetivo propuesto se empleó un caso centrado en la compañía Cementos Andino S.A., en el cual se desarrolló la metodología del TA, cuyos resultados fueron confrontados con los obtenidos a partir del costeo variable, de tal forma que los throughput obtenid...

  3. Conflictos por acceso biotecnológico de los recursos genéticos y conocimientos tradicionales en la región andino-amazónica : los casos de patentes de la maca, el yacón y la sangre de drago

    OpenAIRE

    Pohlenz de Tavira, Ana

    2009-01-01

    Este estudio indaga acerca de si la intervención de las actividades biotecnológicas, que aprovecha el conocimiento tradicional, deviene en conflictos socioambientales. De ahí que se revise el por qué ocurren confrontaciones entre las empresas biotecnológicas y las comunidades indígenas. Específicamente, se investigaron tres casos de etnobioprospección en la región andino-amazónica, mediante los cuales se puede entender los modos de operar de la industria biotecnológica, además del sistema de ...

  4. Escenarios de erosión bajo diferentes manejos agrícolas en la cuenca del lago de Zirahuén, Michoacán, México

    OpenAIRE

    Manuel E. Mendoza Cantú; Miguel Bravo Espinosa; Lenin E. Medina Orozco

    2009-01-01

    La erosión hídrica, la desecación y pérdida de áreas y volúmenes de los lagos son problemas severos en las cuencas cerradas del Sistema Volcánico Transversal. Este deterioro comienza a extenderse a la cuenca del lago de Zirahuén, Michoacán, en la cual se encuentra uno de los pocos lagos mexicanos de aguas casi prístinas; por ello, es urgente plantear estudios que ofrezcan bases para un manejo sostenible de los recursos naturales que beneficie a los distintos usuarios del lago y de la cuenc...

  5. DOS cones along atomic chains

    International Nuclear Information System (INIS)

    Kwapiński, Tomasz

    2017-01-01

    The electron transport properties of a linear atomic chain are studied theoretically within the tight-binding Hamiltonian and the Green’s function method. Variations of the local density of states (DOS) along the chain are investigated. They are crucial in scanning tunnelling experiments and give important insight into the electron transport mechanism and charge distribution inside chains. It is found that depending on the chain parity the local DOS at the Fermi level can form cone-like structures (DOS cones) along the chain. The general condition for the local DOS oscillations is obtained and the linear behaviour of the local density function is confirmed analytically. DOS cones are characterized by a linear decay towards the chain which is in contrast to the propagation properties of charge density waves, end states and Friedel oscillations in one-dimensional systems. We find that DOS cones can appear due to non-resonant electron transport, the spin–orbit scattering or for chains fabricated on a substrate with localized electrons. It is also shown that for imperfect chains (e.g. with a reduced coupling strength between two neighboring sites) a diamond-like structure of the local DOS along the chain appears. (paper)

  6. Dos chalets, en Suecia

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    Erskine, Ralph

    1968-04-01

    Full Text Available Villa Engström, at Sorunda This house, of semi-spheric shape, has besically only one floor level, without basement. However, the guest room and the attic are a kind of second floor within the cupula. This is an experiment, with a view to the possible mass construction of this prototype. The various rooms are grouped in two blocks, one comprising the bedrooms, which are cellular type and of minimum size, and the bathrooms; the other includes the children's room, a living room which extends into the vestibule, and guest room at a higher level. Villa Ström, near Stockholm This house is practically cube shaped, with ample terraces, which are structurally independent of the central volume. A principal aim has been to obtain fine views in all directions, and also to take advantage of the ground slope. This house, of original and competent design, includes indoor gardens which add colour and life to the rooms.Villa Engström, en Sorunda Esta vivienda, que presenta una «forma» semiesferica, es fundamentalmente un edificio de una sola planta, sin sótano; sin embargo, el cuarto de huéspedes y el «ático» forman como una especie de doble planta dentro de la cúpula. Se trata de una experiencia con vistas a una posible fabricación en serie. Las diferentes habitaciones se hallan agrupadas en dos bloques: uno de ellos ocupado por los dormitorios —que son de tipo celular y de tamaño mínimo—, y los cuartos de baño; y el otro que comprende un cuarto para los niños, la sala de estar —unida con el vestíbulo—, y la habitación de los huéspedes en la parte superior. Villa Ström, cerca de Estocolmo La casa es prácticamente un cubo, con terrazas amplias e independientes estructuralmente del volumen principal. En todo caso, ha dominado la doble preocupación de conseguir magníficas vistas hacia todos los alrededores y una adaptación total a la pendiente del terreno. La vivienda se ha resuelto con maestría y originalidad, procurando zonas

  7. Knowledge, attitude, and practice of abortion among female students of two public senior secondary schools in Lagos Mainland Local Government Area, Lagos State

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    Abdul-Hakeem O Abiola

    2016-01-01

    Full Text Available Background: Unsafe abortion is a public health concern because of its dire reproductive health consequences and impact on maternal morbidity and mortality. Tackling this problem will go a long way toward achieving one of the Millennium Developmental Goals, which aim to reduce overall maternal mortality by two-thirds by the year 2015. The aim of this study was to determine the knowledge, attitude, and practice of abortion and the factors associated with it among female students of two public senior secondary schools in Mainland Local Government Area, Lagos state. Materials and Methods: This was designed as a cross-sectional, descriptive study. The multistage sampling method was used to select 210 respondents. Data were collected with self-administered questionnaires and analyzed using the EPI Info software. The questionnaire was divided into four sections: the sociodemographic characteristics of the respondents, knowledge about abortion, attitudes toward abortion, and the practice of abortion. The responses to the knowledge and attitude questions were scored and graded as good (≥50% and poor (<50%. Results: The response rate was 98%. The mean age of the respondents was 15.6 ΁ 1.3 years. The majority (83.3% of the respondents had good knowledge of abortion; almost all (99.2% demonstrated poor attitude toward abortion; and only a few (2% had ever had an abortion. There was a statistically significant association between the ages of the respondents and their knowledge of abortion (P = 0.004 as well as their attitude toward abortion (P = 0.03. Conclusion: The respondents showed good knowledge of abortion, poor attitude toward abortion, and a low of practice of abortion. There is, therefore, a need to improve and sustain the existing knowledge and attitudes toward abortion so as to reduce the practice of abortion among students of the two schools.

  8. INDICADORES FISICOQUÍMICOS Y BIOLÓGICOS DEL PROCESO DE EUTROFIZACIÓN DEL LAGO TITIKAKA (BOLIVIA)

    OpenAIRE

    Fontúrbel Rada, Francisco; Departamento de postgrado, Maestría en Ingeniería de medio ambiente y recursos naturales, Universidad Loyola (Bolivia).

    2016-01-01

    Se evaluó el grado de avance del proceso de eutrofización del lago Titikaka por medio de la evaluación de las macrófitas (pleuston y limnófitas), de la diversidad de fitoplancton, de parámetros fisicoquímicos (pH, turbidez, DBO5, nitrógeno total y fósforo soluble) y microbiológicos (coliformes fecales termotolerantes) en cuatro localidades del lago. Los resultados mostraron un avance diferencial en el desarrollo del proceso de eutrofización en cada sitio: se clasificó un sitio como aguas de c...

  9. Assessment of the exposure of two fish species to metals pollution in the Ogun river catchments, Ketu, Lagos, Nigeria.

    Science.gov (United States)

    Adeniyi, A A; Yusuf, K A; Okedeyi, O O

    2008-02-01

    The concentrations of metals (Ca, Cd, Fe, Mn, Pb and Zn) were determined by flame atomic absorption spectrophotometry in water, sediments and fish samples in the Ogun river catchments, Ketu, Lagos, which is an important bird nesting, fishing and drinking water source. The results show that the southern tip bothering the Lagos lagoon is where the highest metal concentrations are found in the fish species (Tilapia sp. and Chrysichthys sp.), whereas the Agboyi creek segment near the lagoon with higher surrounding human population density recorded higher levels of metals in sediments and water samples. The two fish species accumulated different amounts of metals. However, the differences were not statistically different at p fish species from the Ogun river catchments, Ketu, are low for now as the concentrations were below the recommended Food and Agriculture Organization (FAO) maximum limits for Pb (0.5 mg/Kg), Cd (0.5 mg/Kg), and Zn (30 mg/Kg) in fish.

  10. Ambient air particulate matter in Lagos, Nigeria: a study using receptor modeling with x-ray flourescence analysis

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    E.A. Oluyemi

    2001-12-01

    Full Text Available The need for comprehensive air pollution studies in Lagos cannot be overemphasized in view of the level of industrialization of the city and its nearness to the ocean. Air particulate samples collected with a high-volume air sampler at three locations in Lagos, Nigeria were analyzed by the combination of wavelength-dispersive X-ray fluorescence and atomic absorption spectroscopy methods. Elemental concentrations were subjected to factor analysis for source identification and chemical mass balance model was used for source apportionment. Prominent among sources identified with the ranges of their contributions at the sites are: soil 35-54%, marine 26-34%, automobile exhaust 0.3-3.5%, refuse incineration 2-3%, and regional sulphate 2-12%.

  11. Testing freshwater Lago Mare dispersal theory on the phylogeny relationships of iberian cyprinid genera Chondrostoma and Squalius (Cypriniformes, Cyprinidae

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    Carmona, José Ambrosio

    2003-12-01

    Full Text Available A phylogeny of the species in the genera Chondrostoma and Squalius was constructed based on the complete mitochondrial cytochrome b gene (1140pb. The molecular phylogeny was used to test the effect of the Mediterranean Lago Mare dispersal theory on the processes of divergence and speciation of European freshwater fishes. Phylogenetic relationships among Squalius samples and the molecular clock revealed that the ancestor of the current Iberian Squalius species inhabited a wide geographic area in the central and southwestern part of the former Iberian Peninsula during the Miocene before the Lago Mare phase. Similarly, the four main Iberian lineages of the genus Chondrostoma originated in the Middle-Upper Miocene. Hence, the Lago Mare phase of the Mediterranean Sea seems to have been a too recent paleogeographic event to have had any major impact on the dispersion of Squalius and Chondrostoma species. However, the reduction of the water-bodies during the Tortonian and Messinian may have intensified the isolation of populations. The Operational Biogeographic Units recovered from the Squalius and Chondrostoma phylogenies also reject the Lago Mare dispersal theory and support the idea that the differentiation processes were due to both the formation of the current hydrographical basin during the Plio-Pleistocene as well as to an earlier endorrheism event that occurred prior to hydrographical configuration.Realizamos una filogenia de los géneros Chondrostoma y Squalius mediante el estudio de la secuencia completa del gen mitocondrial citocromo b (1140pb. La filogenia molecular fue usada para comprobar el efecto que la teoría de dispersión del Mediterráneo Lago Mare ha tenido sobre los procesos de divergencia y especiación en los peces de agua dulce europeos. Las relaciones filogenéticas entre las muestras de Squalius y la aplicación del reloj molecular pusieron de manifiesto que el ancestro de las actuales especies ibéricas de Squalius habitaba

  12. Cuzco: a dessacralização da cidade imperial dos incas no romance de José María Arguedas

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    Jacqueline de Cassia Pinheiro Lima

    2014-04-01

    Full Text Available Esse texto tem seu embasamento nas leituras e pesquisas que tiveram início em Cursos de Mestrado e Doutorado, culminando nas pesquisas hoje em um Programa de Pós-Graduação Interdisciplinar. Desde então, as leituras sobre a construção de uma América Latina mestiça e extremamente rica, mesmo empobrecida por diversos fatores de exploração que tiveram início com a chegada dos europeus ao continente, continuam a fazer parte dos estudos, projetos, aulas que estão sendo desenvolvidos. Os Rios profundos, o romance de José Maria Arguedas (1911-1969 que teve a primeira edição em 1958, começa nos apresentando Cuzco, a capital do império incaico, cidade considerada sagrada pelos indígenas. Sua fundação, em que se confundem a história concreta e a formação social do povo inca com o imaginário e o simbólico do homem andino, nos remete ao mito de origem desse povo em suas várias maneiras de ser apresentado. Com o processo colonizador implantado pelos espanhóis, acontece a construção de Lima, que passa a ser a capital do Peru. Para os descendentes do incanato essa mudança é aceita como uma divisão: Cuzco continuou a ser considerada a capital do império para eles. O presente artigo pretende apresentar a maneira pessoal de José María Arguedas olhar para a cidade sagrada dos incas em seus textos, sendo que, nesse artigo, a abordagem será feita a partir do romance Los ríos profundos, apenas.

  13. Indígenas andinos en Chile Colonial: Inmigración, inserción espacial, integración económica y movilidad social (Santiago, Siglos XVI-XVII

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    Valenzuela Márquez, Jaime

    2010-12-01

    Full Text Available Beginning with the 16th century conquering expeditions, many Andean natives who served the Spaniards arrived in Chile, where they settled in and integrated in the work and social areas of this outlying «New World»; they formed local networks and relationships, had offspring; a number of them became artisans and some drafted wills or left their mark in ecclesiastical or notarized documents that provide us with an idea of their mobility and local integration. This work offers a background and reveals the principle hubs of a process resembling a medullar structure, in order to understand how the early Chilean colonial society was made up. At the same time, it provides insights into the phenomena of movement, uprooting and settlement of the indigenous population in the southern Peruvian viceroyalty.

    Desde las expediciones de conquista del siglo XVI llegaron a Chile numerosos indígenas andinos que sirvieron a los españoles, se asentaron y se integraron en los espacios laborales y sociales de este «nuevo mundo» periférico; formaron redes y parentescos locales, tuvieron descendencia, varios se transformaron en artesanos y algunos dictaron testamentos o dejaron huellas en documentos eclesiásticos y notariales que nos permiten observar su movilidad e inserción local. Este trabajo aporta antecedentes y desvela los principales ejes de un proceso que aparece como medular para entender la formación de la sociedad colonial chilena temprana y, a la vez, para dar cuenta de fenómenos de circulación, desarraigo y asentamiento de población indígena en el virreinato peruano meridional.

  14. Aquatic macrophytes as indicators of water quality in subtropical shallow lakes, Southern Brazil Macrófitas aquáticas como indicadores da qualidade da água em pequenos lagos rasos subtropicais, Sul do Brasil

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    Sabrina Amaral Pereira

    2012-03-01

    (Pt. RESULTADOS: No total, quarenta e três espécies foram registradas, e ocorreram diferenças significativas na riqueza de espécies e nas condições limnológicas entre os lagos estudados. A análise de correspondência canônica mostrou que a concentração de nutrientes (Nt e Pt, clorofila-a, material em suspensão, oxigênio dissolvido e pH foram os mais importantes preditores da distribuição das macrófitas aquáticas. Algumas espécies emergentes estiveram relacionadas alta concentração de nutrientes, de clorofila-a, e de material em suspensão. Por outro lado, a maioria das espécies submersas foram associadas a ambientes com baixa concentração de nutrientes e os menores valores de clorofila-a, e de material em suspensão. Além disso, algumas espécies submersas e flutuantes foram relacionadas a baixos valores de pH, alcalinidade e oxigênio dissolvido. As diferenças limnológicas entre os lagos podem ser apontadas como as principais causas da distribuição heterogênea observada das macrófitas. CONCLUSÕES: Estes resultados indicam a importância das características limnológicas dos diferentes ambientes na composição da comunidade de macrófitas aquáticas e o potencial papel bioindicador dessa comunidade em lagos rasos do sul do Brasil.

  15. Impact of Maintenance Strategies on the Performance Of Industrial Facilities In Selected Industrial Estates In Lagos State, Nigeria

    OpenAIRE

    Oseghale, G.E

    2014-01-01

    The study appraised the facilities and the maintenance management strategies employed in selected industrial estates in Lagos State by identifying and examining facilities maintenance strategies, and determining their impact on the physical condition of the facilities. This was with a view to establishing the optimal strategies. Data were sourced using structured questionnaire administered on the staff of maintenance department of the industrial firms located in the estates, only building mat...

  16. One World, One Health, One Medicine: An Assessment of Intersectoral Collaboration in Avian Influenza Control in Lagos State

    OpenAIRE

    Aman-Oloniyo, Abimbola; Allison, Olalekan; Razaq, Musbau A.

    2013-01-01

    Objective To assess the collaborative efforts in Avian Influenza control that could be harnessed for the control of other Zoonotic diseases. Introduction The livestock sector is vital to the socio-economic development of Nigeria; it contributes about 9?10% of agricultural GDP. Livestock represents an important source of high quality animal protein providing about 36.5 % of total protein intake of Nigerians (1). Lagos State, located in the south-western part of Nigeria, has the smallest landma...

  17. Sensoriamento remoto como ferramenta de monitoramento da qualidade da água do Lago Paranoá (DF

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    Marilia Teresinha de Sousa Machado

    Full Text Available RESUMO: Este trabalho testou uma metodologia baseada no sensoriamento remoto para estimar o estado trófico de um reservatório urbano (Lago Paranoá em Brasília (Brasil, com vistas ao monitoramento da qualidade da água. Quatro fases limnológicas do Lago Paranoá foram analisadas a partir da eutrofização do reservatório como resultado do excessivo aporte de esgotos domésticos. Dados de fósforo total, clorofila-a , transparência da água e imagens processadas do LANDSAT TM 5 foram utilizados para estimar do estado trófico. Esses dados foram correlacionados com dados limnológicos e os mapas quantificaram as variáveis para todo o espelho d'água. Com o uso do Índice de Estado Trófico de Carlson, novos mapas foram gerados, estimando o estado trófico do Lago Paranoá para cada fase limnológica analisada. O método e as estimativas testadas mostraram-se adequados para o monitoramento da qualidade da água, pois refletem as mudanças que a água do reservatório experimentou após a eutrofização.

  18. Mentoring and Succession of Administrators: Critical Issues in Public and Private Secondary Schools in Lagos State, Nigeria

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    S.A. Oladipo

    2016-08-01

    Full Text Available Studies have shown that the quality of outcome in Nigerian secondary schools is declining at an alarming rate due to shortage of required resources as well as leadership challenges. The challenges have been observed to be as a result of lack of mentoring which is not a common practice in school management in Nigeria. Consequently, this study investigated the extent to which mentoring as a strategy for administrators' succession plan impacts on the performance of their duties in public and private secondary schools in Lagos, Nigeria. The study adopted the descriptive survey design and administered a 25-item self-constructed questionnaire on participants. A total of 530 participants were randomly selected from the population of 4,350 senior teachers. The Participants were drawn from 145 secondary schools (91 public and 54 registered private in Education District IV of Lagos State. The findings showed that mentoring has significant impact on administrators' succession planning and that succession planning does not significantly differ in public and private secondary schools in Lagos State. The study concluded that leadership development is a critical factor in secondary school effectiveness and efficiency. Therefore, serving administrators as well as prospective administrators should be regularly evaluated to determine their training needs at different career stages. There should also be mentoring related policies to enhance the managerial skills, sense of competence and effectiveness of the prospective administrators.

  19. Hepatic pathologies in the brackish water catfish (Chrysichthys nigrodigitatus) from contaminated locations of the Lagos lagoon complex

    Science.gov (United States)

    Olarinmoye, O.; Taiwo, V.; Clarke, E.; Kumolu-Johnson, C.; Aderinola, O.; Adekunbi, F.

    2010-01-01

    Several toxicological studies into the effects of aquatic pollutants on the liver of teleost fish exist in literature. The focus on the liver in these studies is predicated on its central nature in the scheme of biotransformation and excretion of xenobiotics following exposure in polluted water bodies. As a consequence of the latter primary role of the liver in these processes it is regarded as a predilective site for the sub lethal effects of xenobiotics on the organism usually detectable at histological level. Hepatic histopathology recorded in livers from feral populations of the brackish water catfish Chrysichthys nigrodigitatus from locations on the Lagos lagoon complex with significant anthropogenic inputs from denizen populations and industries are presented. Liver sections from sixty specimens from two locations on the Lagos lagoon complex (Badagry lagoon: 6??24'N, 2??56'E; and Lagos lagoon: 6??29'N, 3??22'E) were analysed. Observed pathologies included hydropic degeneration (58%), portal / sinusoidal congestion (33%), hepatic necrosis (26%), hemosiderosis (12%) and foci of cellular alterations (FCA's). No obvious oncologic features were observed; the presence of the hydropic Vacuolation lesion was taken as prelude to the development of neoplasms and discussed as such. ?? 2009, Penkala Bt., Budapest, Hungary.

  20. Preparedness of government owned dental clinics for the management of medical emergencies: a survey of government dental clinics in Lagos.

    Science.gov (United States)

    Gbotolorun, O M; Babatunde, L B; Osisanya, O; Omokhuale, E

    2012-01-01

    An emergency is a medical condition demanding immediate treatments. The aim of the study was to determine the knowledge and ability of dental surgeons in the management of medical emergencies and the availability of emergency drugs and equipment in government dental clinics and hospitals in Lagos State. The study was a descriptive cross-sectional study of knowledge and ability of Dental Surgeons in the management of medical emergencies, prevalence of medical emergencies in dental practice and availability of emergency drugs and equipment in dental practice in government dental clinics and hospitals in Lagos State. The study covered 22 government dental clinics and hospitals in Lagos State. Data obtained was entered into a computerand analyzed using Statistical Package for Social Science (SPSS) Version-16 data analysis software. Chi Square and cross-tabulations were used for the analysis. A 95% Confidence Level was used and a p-value of less than or equal to 0.05 was considered statistically significant. Of a population of 255 Dental Surgeons on the nominal rolls of all the health institutions, 224 (87%)responded.Of the total respondents, 204 (91.1%) stated they had no emergency kit in their dental clinics (p emergency. Although 71.9% of the dentist claimed they could mange such emergencies should they arise 91.1% and 70% of the respondent claimed they and no emergency kits and drugs to manage such emergencies in their hospital respectively should they arise.

  1. Grupo Drosophila asiri (Diptera, Drosophilidae, un nuevo grupo de especies andinas con la descripción de dos nuevas especies y la redescripción de Drosophila asiri

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    María Luna Figuero

    2012-03-01

    Full Text Available El nuevo grupo Drosophila asiri pertenece al subgénero Drosophila. Los ejemplares fueron capturados en los bosques andinos del Ecuador, desde los 3200 hasta los 4000 m de altitud. A este grupo pertenecen Drosophila (D. asiri Vela & Rafael, 2005 previamente ubicada dentro del grupo D. onychophora, y dos nuevas especies; Drosophila (D. yuragyacum sp. nov. y Drosophila (D. yanaurcus sp. nov. Las capturas se realizaron en el bosque protector Pasochoa, en la quebrada de Cruz Loma y en el páramo de Papallacta, utilizando cebo de banano y levadura. Los miembros del nuevo grupo por el momento son endémicos de los Andes ecuatorianos. Las tres especies del grupo D. asiri son moscas de tamaño grande (aproximadamente 6 mm. Los machos presentan el edeago quitinizado con dos proyecciones laterales en la cabeza a manera de cuernos muy quitinizados. Estas características diferencian a las especies del grupo D. asiri de otros grupos dentro de Drosophila.

  2. Cabo Verde, «Pousada» nos Caminhos do Atlântico. Interinfluências culturais num arquipélago miscigenado / Cape Verde, the «Pousada» of the Atlantico routes - cultural interinfluences in an interbred archipelago

    Directory of Open Access Journals (Sweden)

    José Silva Évora

    2014-12-01

    Full Text Available Descoberto entre 1460 e 1462, o Arquipélago de Cabo Verde, situado no Oceano Atlântico, constituiu ao longo de vários séculos, escala obrigatória dos navios que faziam as ligações atlânticas entre os portos das Américas, da Europa e da África Graças a sua situação privilegiada, o espaço cabo-verdiano não foi um mero ponto de reabastecimento, mas também um importante ponto de cruzamento de culturas e de raças. Pretende-se, neste texto, abordar o papel que Cabo Verde teve no Atlântico incidindo, particularmente, na dimensão cultural resultante do contacto entre povos e culturas provenientes de diferentes paragens que se fixaram no arquipélago ou que por aqui passaram. Procurar-se-á evidenciar não só a importância que Cabo Verde teve enquanto ponto de passagem obrigatória mas, sobretudo, as contribuições que mais marcadamente se denunciaram, isto é, os apports culturais que mais se acentuaram em Cabo Verde, como processos recebidos dos estrangeiros que por estas ilhas se cruzaram.The Archipelago of Cape Verde, discovered between 1460 and 1462, and situated in the Atlantic Ocean, had been considered for centuries one of the mandatory harbours of the ships that sailed across the Atlantic to the ports of America, Europe and Africa. Because of its strategic location, Cape Verdean anchorage was considered not only the supplying point, but also an important melting pot of races and cultures. It is intended to highlight the role of Cape Verde in the Atlantic focusing particularly on the cultural aspect, as a result of the influence of cultures and origins of people who had settled in or had passed by the archipelago. It is also aimed to underline the importance of Cape Verde as a mandatory gateway but, above all, to underline the remarkable contributions, such as the cultural “apports” by which Cape Verde were gripped, like processes brought by the foreigners who crossed these islands.

  3. LA INTERCULTURALIDAD EN LA FORMACIÓN DOCENTE: CONTEXTOS PARA PENSAR UN RECORRIDO SITUADO. LOS CASOS DE EL BOLSÓN Y LAGO PUELO

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    María Alma Tozzini

    2015-11-01

    Full Text Available El presente artículo se propone analizar, a partir de una experiencia compartida entre dos Institutos de Formación Docente de dos localidades vecinas pertenecientes a diferentes provincias, qué conceptos, prácticas y usos de la interculturalidad se están replicando, interpelando y/o construyendo actualmente en la formación docente inicial y continua de dichas instituciones. Para esto, se tomará como excusa la disertación que un especialista en genocidio indígena diera sucesivamente en los auditorios del Instituto Superior de Formación Docente N° 813 de Lago Puelo, Chubut y del Instituto de Formación Docente Continua de El Bolsón, Río Negro, respectivamente. A los fines de poder identificar qué nociones de interculturalidad está poniendo en práctica cada instituto de formación docente, resulta fundamental contextualizar la normativa específica que regula a cada institución provincial, como así también la trayectoria que cada una fue construyendo en torno a dicho tópico a lo largo del tiempo, así como la relación con su comunidad de inserción. Nos interesa, como fin último poder discernir “de qué hablamos” cuando hablamos de interculturalidad en cada contexto formativo y de qué manera esto logra interpelar (o no a los estudiantes de carreras docentes, a los docentes en ejercicio que concurren a capacitaciones o a la comunidad en general que se acerca a este tipo de eventos. Siendo un término –la interculturalidad- al que se le han adjudicado diferenciales definiciones, un ejercicio formativo comprometido con dicho objetivo, no puede menos que desandar sus propias construcciones y práctica en torno al tópico. Para este objetivo el artículo se vale de la observación participante, las entrevistas abiertas y la revisión de fuentes de archivo, desde una perspectiva etnográfica que intente “documentar lo no documentado” y hacer emerger otra voces.

  4. El Lago Chasicó: analogías y diferencias con las lagunas pampásicas.

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    Alejandra Vanina Volpedo

    2013-10-01

    Full Text Available La llanura pampeana es una de las grandes planicies a nivel mundial. La escasa pendiente y la geomorfología hacen que el escurrimiento de las aguas de  lluvia, sea relativamente lento y presente numerosos sistemas lénticos, que poseen diferentes orígenes geomorfológicos y características limnológicas. En este trabajo se comparan las características más relevantes de los sistemas lénticos más comunes presentes en la zona (lagunas pampásicas y se  analizan las analogías y diferencias de dichos cuerpos de agua con  un lago del sudoeste bonaerense (Lago Chasicó.  Las lagunas pampásicas poseen un perfil de “palangana”, no poseen un ciclo térmico definido, ni estratificación persistente,  poseen circulación continua, y no presentan una diferenciación entre la zona litoral y la central de la laguna. Otra de las características típicas de estos cuerpos de agua es la presencia de macrófitas. El Lago Chasicó posee un origen geomorfológico combinado tectónico-eólico, perfil en forma de “U” y una profundidad importante, significativamente mayor a la profundidad media de las lagunas pampásicas. Esta característica permite sugerir la posibilidad de la existencia de un gradiente térmico. Además no posee macrofitas en su costa. Las aguas del lago son  clorurada sódicas, poseen alta salinidad (>25 gL-1, mientras que las aguas de las lagunas pampásicas son bicarbonatadas sódicas o cloruradas sódicas bicarbonatadas, sin anión dominante, con una salinidad menor a 3 g L-1. El Lago Chasicó y las lagunas pampásicas son hipertróficos.

  5. Characteristics and risk factors of preterm births in a tertiary center in Lagos, Nigeria.

    Science.gov (United States)

    Butali, Azeez; Ezeaka, Chinyere; Ekhaguere, Osayame; Weathers, Nancy; Ladd, Jenna; Fajolu, Iretiola; Esezobor, Christopher; Makwe, Christian; Odusanya, Bukola; Anorlu, Rose; Adeyemo, Wasiu; Iroha, Edna; Egri-Okwaji, Mathias; Adejumo, Prisca; Oyeneyin, Lawal; Abiodun, Moses; Badejoko, Bolaji; Ryckman, Kelli

    2016-01-01

    Preterm birth is a dire complication of pregnancy that poses huge long-term medical and financial burdens for affected children, their families, and the health care system. The aim of the present study was to identify characteristics associated with preterm births at the Lagos University Teaching Hospital (LUTH), Lagos, Nigeria from 2011 to 2013. We obtained Information from 5,561 maternal, fetal/neonatal and obstetric records from the labor ward. We excluded delivery at less than 22 weeks (0.25%), post-term birth at ≥42 weeks gestation (1.3%), and unknown gestation (1.4%). Additionally, we excluded records of multiple births (5.4%) and stillbirths (8.3%) leaving 4,691 records of singleton live-births for analysis. Logistic regression analysis was performed comparing preterm birth (22-36 weeks gestation) to term birth (37-41 weeks gestation). Multiple variable models adjusting for maternal age, parity, fetal position, delivery method and booking status were also evaluated. Multinomial regression was used to identify characteristics associated with preterm birth (PTB) defined as early PTB (22-31 weeks gestation), moderate PTB (32-34 weeks gestation), late PTB (35-36 weeks gestation), compared to term birth (37-41 completed weeks gestation). From our data, 16.8% of the singleton live-birth deliveries were preterm (<37 weeks gestation). Of these, 4.7% were early (22-31 weeks), 4.5% were moderate (32-34 weeks) and 7.7% were late (35-36) PTBs. Older maternal age (≥35 years) [odds ratio (OR) = 1.41], hypertension (OR = 3.44) and rupture of membranes (OR = 4.03) were significantly associated with increased odds of PTB. Women being treated for the prevention of mother-to-child transmission of HIV were at a significantly decreased risk for PTB (OR = 0.70). Sixteen percent of women in this cohort were not registered for antenatal care in LUTH. These non-registered subjects had significantly greater odds of all categories of PTB, including early (odds ratio (OR) = 20

  6. Identification and characterization of microsporidia from fecal samples of HIV-positive patients from Lagos, Nigeria.

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    Oladele Teslim Ojuromi

    Full Text Available BACKGROUND: Microsporidia are obligate intracellular parasites that infect a broad range of vertebrates and invertebrates. They have been increasingly recognized as human pathogens in AIDS patients, mainly associated with a life-threatening chronic diarrhea and systemic disease. However, to date the global epidemiology of human microsporidiosis is poorly understood, and recent data suggest that the incidence of these pathogens is much higher than previously reported and may represent a neglected etiological agent of more common diseases indeed in immunocompetent individuals. To contribute to the knowledge of microsporidia molecular epidemiology in HIV-positive patients in Nigeria, the authors tested stool samples proceeding from patients with and without diarrhea. METHODOLOGY/PRINCIPAL FINDINGS: Stool samples from 193 HIV-positive patients with and without diarrhea (67 and 126 respectively from Lagos (Nigeria were investigated for the presence of microsporidia and Cryptosporidium using Weber's Chromotrope-based stain, Kinyoun stain, IFAT and PCR. The Weber stain showed 45 fecal samples (23.3% with characteristic microsporidia spores, and a significant association of microsporidia with diarrhea was observed (O.R. = 18.2; CI: 95%. A similar result was obtained using Kinyoun stain, showing 44 (31,8% positive samples with structures morphologically compatible with Cryptosporidium sp, 14 (31.8% of them with infection mixed with microsporidia. The characterization of microsporidia species by IFAT and PCR allowed identification of Enterocytozoon bieneusi, Encephalitozoon intestinalis and E. cuniculi in 5, 2 and 1 samples respectively. The partial sequencing of the ITS region of the rRNA genes showed that the three isolates of E.bieneusi studied are included in Group I, one of which bears the genotype B. CONCLUSIONS/SIGNIFICANCE: To our knowledge, this is the first report of microsporidia characterization in fecal samples from HIV-positive patients from

  7. Potential health risks due to telecommunications radiofrequency radiation exposures in Lagos State Nigeria.

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    Aweda, M A; Ajekigbe, A T; Ibitoye, A Z; Evwhierhurhoma, B O; Eletu, O B

    2009-01-01

    The global system mobile telecommunications system (GSM) which was recently introduced in Nigeria is now being used by over 40 million people in Nigeria. The use of GSM is accompanied with exposure of the users to radiofrequency radiation (RFR), which if significant, may produce health hazards. This is the reason why many relevant national and international organizations recommended exposure limits to RFR and why it is made compulsory for GSM handsets to indicate the maximum power output as a guide to potential consumers. This study was conducted to measure the RFR output power densities (S) from the most commonly used GSM handsets used in Lagos State and compare with the limit recommended for safety assessment. Over 1100 most commonly used handsets of different makes and models as well as wireless phones were sampled and studied in all over the local government areas of the State. An RFR meter, Electrosmog from LESSEMF USA was used for the measurements. The handsets were assessed for health risks using the reference value of 9 Wm(-2) as recommended by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). The range of the S-values obtained varied from a minimum of 1.294 0.101 Wm(-2) with Siemens model R228 to a maximum of 16.813 +/- 0.094 Wm(-2) with Samsung model C140*. The results from wireless telephones showed very low S-values ranging from a minimum of 0.024 +/- 0.001 Wm(-2) with HUAWEI and ST CDMA 1 to a maximum of 0.093 +/- 0.002 Wm(-2) with HISENSE. The results showed that the population in Lagos State may be at risk due to significant RFR exposures resulting principally from the use of GSM. Quite a number of handsets emit power above the ICNIRP recommended value. Measured RFR power close to Radio and Television masts and transmitters are within tolerable limits in most cases, only that the public should not reside or work close to RFR installations. Phone calls with GSM should be restricted to essential ones while youths and children

  8. Almacenamiento de carbono en especies predominantes de flora en el lago Chinchaycocha

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    Ronald Medrano Yanqui

    2012-12-01

    Full Text Available Objetivos: Evaluar la cantidad de carbono que almacenan las especies predominantes de flora del lago Chinchaycocha. Métodos: La investigación fue de tipo básica, de corte transversal y con un nivel exploratorio-comparativo. El estudio se hizo en tres ecosistemas dentro del humedal: bofedal, pajonal y totoral, las áreas fueron identificadas con ayuda de imágenes satelitales Landsat. El procedimiento estuvo basado en la recolección de muestras divididas en: biomasa aérea, biomasa radicular y muestras de suelo, hallándose el contenido de carbono de cada una. Resultados: En el totoral se obtuvo que Schoenoplectus californicus Var. Tatora almacena 30,65 tC/ha y Juncos arcticus Var. Andicola 8,70 tC/ha. En el pajonal Deyeuxia recta Kunth almacena 7,02 tC/ha en su biomasa aérea y 8,41 tC/ha en su biomasa radicular. En el bofedal: Plantago tubulosa almacena 0,81 t C/ha en su biomasa aérea y 1,88 t C/ha en su biomasa radicular, Eleocharis albibracteata almacena 0,22 t C/ha en su biomasa aérea y 2,95 tC/ha en su biomasa radicular, y Limosella australis almacena 0,22 tC/ha en su biomasa aérea y 0,38 tC/ha en su biomasa radicular. En el almacenamiento de carbono en suelos se determinó 774,76 tC/ ha en pajonales y 684,58 tC/ha en bofedales. Conclusiones: Se concluye que en el lago Chinchaycocha el ecosistema que brinda mayor almacenamiento de carbono es el totoral, seguido por el pajonal y en menor proporción el bofedal. Asimismo los suelos son considerados los mayores sumideros de carbono.

  9. The LAGO Collaboration: Searching for high energy GRB emissions in Latin America

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    Barros, H.; Lago Collaboration

    2012-02-01

    During more than a decade Gamma Ray Bursts (GRB a cosmological phenomena of tremendous power) have been extensively studied in the keV - MeV energy range. However, the higher energy emission still remains a mystery. The Large Aperture GRB Observatory (L.A.G.O.) is an international collaboration started in 2005 aiming at a better understanding of the GRB by studying their emission at high energies (> 1 GeV), where the fluxes are low and measurements by satellites are difficult. This is done using the Single Particle Technique, by means of ground-based Water Cherenkov Detectors (WCD) at sites of high altitude. At those altitudes it is possible to detect air showers produced by high energy photons from the GRB, i. e. a higher rate of events on a short time scale, of the order of the second. The Pierre Auger Observatory could detect such GRB given its large number of detectors, but at 1400 m.a.s.l. the expected signal is quite small. At higher altitudes, similar performance is expected with only a very small number of WCD. As of 2011, high altitude WCD are in operation at Sierra Negra (Mexico, 4650 m.a.s.l.), Chacaltaya (Bolivia, 5200 m.a.s.l.), Maracapomacocha (Peru, 4200 m.a.s.l.), and new WCDs are being installed in Venezuela (Pico Espejo, 4750 m.a.s.l.), Argentina, Brazil, Chile, Colombia and Guatemala. Most of the new WCDs will not be at high enough altitude to detect GRB, never the less it will allow obtaining valuable measurements of secondaries at ground level, which are relevant for solar physics. The LAGO sensitivity to GRB is determined from simulations (under a sudden increase of 1 GeV - 1 TeV photons from a GRB) of the gamma initiated particle shower in the atmosphere and the WCD response to secondaries. We report on WDC calibration and operation at high altitude, GRB detectability, background rates, search for bursts in several months of preliminary data, as well as search for signals at ground level when satellite burst is reported, all these show the

  10. Variación estacional e influencia de la turbidez y la salinidad sobre el zooplancton de un lago salino de la región central de Argentina Seasonal variation and influence of turbidity and salinity on the zooplankton of a saline lake in central Argentina

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    Santiago Andrés Echaniz

    2011-07-01

    del nivel y salinidad, carencia de macrófitas y peces, y compararlo con otros lagos someros de la provincia. Se encontraron importantes diferencias con otros lagos salinos, la riqueza específica fue menor, la abundancia media del zooplancton fue entre 4 a 6 veces superior y el predominio numérico fue de los rotíferos, que no fueron afectados por la salinidad o la concentración de sólidos suspendidos inorgánicos, a diferencia de los crustáceos, que fueron afectados negativamente por estos factores ambientales. La biomasa fue dos veces más elevada que la registrada en el mismo período en dos lagos someros pampeanos con parecida concentración de nutrientes pero con salinidades menores.

  11. Composição e abundância de peixes da interface entre as águas abertas e bancos de macrófitas e sua dinâmica nos períodos de crepúsculos matutino e vespertino, no lago Catalão, Amazonas, Brasil.

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    Igor David da Costa

    2011-05-01

    O presente trabalho objetivou verificar a composição e abundância de peixes que realizam movimentos entre os bancos de macrófitas e as águas abertas durante os períodos dos crepúsculos matutino (CM e vespertino (CV. As coletas foram realizadas no lago do Catalão, Amazonas, Brasil, com malhadeiras adjacentes a bancos de Paspalum repens. Foram coletados um total de 222 indivíduos e 37 espécies. 130 indivíduos no CM e 92 no CV, 80 indivíduos foram encontrados saindo no CM e 40 na direção de saída no CV. Auchenipterus nuchalis, Pellona castelnaeana, Triportheus angulatus e T. albus foram as espécies mais capturadas e concentradas no CM, sendo espécie Pimelodus blochii a mais abundantes no CV.

  12. Levaduras fermentadoras aisladas de Cyttaria hariotii (Fungi en bosques Andino-Patagónicos (Argentina Fermenting yeasts isolated from Cyttaria hariotii (Fungi in the Andean Patagonic Forest

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    José Ulloa

    2009-12-01

    Full Text Available Las levaduras han estado asociadas al hombre desde épocas muy tempranas. Entre estas se destacan las fermentadoras debido a su importancia en la industria de los alimentos. Las implicancias biotecnológicas de estas levaduras han sido extensamente estudiadas, sin embargo la distribución en la naturaleza y la ecología de estas no se encuentra igualmente documentada. El presente estudio se realizó en el Parque Nacional Nahuel Huapi (Noroeste Patagónico, Argentina sobre Cyttaria hariotii, hongo ascomicético parásito de árboles del género Nothofagus. Mediante el uso de un medio selectivo con etanol 8 % se obtuvieron 72 aislamientos. Los mismos fueron ordenados en cinco grupos en base a pruebas morfológicas y fisiológicas, tres de los cuales fueron asignados a los géneros Saccharomyces, Pichia y Kloeckera. El grupo Saccharomyces presentó el mayor número de aislamientos y se subdividió en tres subgrupos, dos de ellos presentan alta afinidad con S. bayanus y/ó S. uvarum. La totalidad de los aislamientos fueron psicrotolerantes y la temperatura máxima de crecimiento osciló entre 35 y 37 _C. El presente trabajo contribuye al conocimiento de la biodiversidad de levaduras de la Patagonia y representa el primer aislamiento masivo de levaduras sacaromicéticas en ambientes naturales de la región.Yeasts have been associated with mankind from early ages. Among these, fermentative yeasts played the most relevant role, due to its importance in the food industry. The biotechnological implications of these yeasts have been extensively studied. However there is a lack of information about its distribution in nature and ecology. In this study samples of Cyttaria hariotii, ascomycete fungus parasite of trees of the genus Nothofagus, were collected in Nahuel Huapi National Park (Northwestern Patagonia, Argentina. 72 isolates were obtained using a selective culture medium with 8% ethanol. Identification of the isolates was based on morphological and

  13. The effect of a sexuality education programme among out- of- school adolescents in Lagos, Nigeria.

    Science.gov (United States)

    Odeyemi, K A; Onajole, A T; Ogunowo, B E; Olufunlayo, T; Segun, B

    2014-06-01

    This study was conducted to assess the effect of a community based sexuality education programme on the sexual health knowledge and practices of out of school female adolescents. This Intervention study was conducted in two markets within Lagos, Nigeria. Representative samples of adolescents were interviewed on their sexual health knowledge and practices. An Education- entertainment programme provided sexuality education to adolescents in Mushin market only (intervention group) followed by post intervention surveys in Mushin market and Sangrouse market (control group). The pre and post intervention surveys were compared 6 months post intervention to detect any changes. Sexual health knowledge and behaviour was similar among respondents in both markets pre intervention. Post intervention, the sexual health knowledge of the respondents in the intervention site improved significantly. (psex in the intervention site than in the control site and contraceptive use increased. However among the sexually active, there was no significant change in their condom use and number of sexual partners. Community based health education programmes can be used to provide effective sexuality education for out of school adolescents. Provision should be made by government and non-governmental organisations during adolescent reproductive health programming for sexuality education targeted at out of school adolescents.

  14. Electrocardiographic Study in Adult Homozygous Sickle Cell Disease Patients in Lagos, Nigeria

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    Adedoyin Dosunmu

    2016-01-01

    Full Text Available Background. This study sought to identify the pattern of electrocardiographic changes in steady state adult sickle cell anaemia. Methods. A case-control, cross-sectional study was conducted amongst sickle cell patients attending the sickle cell clinic of Lagos State University Teaching Hospital, Ikeja, and HbAA controls. All consenting participants had haemoglobin electrophoresis done and were subjected to electrocardiography (ECG. The descriptive data were given as means ± standard deviation (SD. The differences were considered to be statistically significant when the p value obtained was <0.05. Results. A total of ninety-three sickle cell anaemia (SCA patients and ninety haemoglobin AA (controls were enrolled. There was no significant difference in the age of the participants with SCA and that of the controls but the body mass index was significantly higher in controls (p=0.0001. Overall, 73.1% (68 of 93 had abnormal ECG while only 2 of 90 (2.2% of controls had abnormal ECG. The common abnormalities observed were left ventricular hypertrophy, biventricular hypertrophy, and right ventricular hypertrophy. Conclusion. Patients with SCA in steady state tend to have normal heart rate but about 50% of them would have had ECG changes before the age of 20 years. ECG being a noninvasive test may be used to identify patients at risk for early intervention.

  15. Estimating the Risk of ABO Hemolytic Disease of the Newborn in Lagos

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    Akanmu, Alani Sulaimon; Oyedeji, Olufemi Abiola; Adeyemo, Titilope Adenike; Ogbenna, Ann Abiola

    2015-01-01

    Background. ABO hemolytic disease of the newborn is the most common hemolytic consequence of maternofetal blood group incompatibility restricted mostly to non-group-O babies of group O mothers with immune anti-A or anti-B antibodies. Aim. We estimated the risk of ABO HDN with view to determining need for routine screening for ABO incompatibility between mother and fetus. Materials and Methods. Prevalence of ABO blood group phenotypes in blood donors at the donor clinic of the Lagos University Teaching Hospital and arithmetic methods were used to determine population prevalence of ABO genes. We then estimated proportion of pregnancies of group O mothers carrying a non-group-O baby and the risk that maternofetal ABO incompatibility will cause clinical ABO HDN. Results. Blood from 9138 donors was ABO typed. 54.3%, 23%, 19.4%, and 3.3% were blood groups O, A, B, and AB, respectively. Calculated gene frequencies were 0.1416, 0.1209, and 0.7375 for A, B, and O genes, respectively. It was estimated that 14.3% of deliveries will result in a blood group O woman giving birth to a child who is non-group-O. Approximately 4.3% of deliveries are likely to suffer ABO HDN with 2.7% prone to suffer from moderately severe to severe hemolysis. PMID:26491605

  16. Solid waste generation and characterization in the University of Lagos for a sustainable waste management.

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    Adeniran, A E; Nubi, A T; Adelopo, A O

    2017-09-01

    Waste characterization is the first step to any successful waste management policy. In this paper, the characterization and the trend of solid waste generated in University of Lagos, Nigeria was carried out using ASTM D5231-92 and Resource Conservation Reservation Authority RCRA Waste Sampling Draft Technical Guidance methods. The recyclable potential of the waste is very high constituting about 75% of the total waste generated. The estimated average daily solid waste generation in Unilag Akoka campus was estimated to be 32.2tons. The solid waste characterization was found to be: polythene bags 24% (7.73tons/day), paper 15% (4.83tons/day), organic matters 15%, (4.83tons/day), plastic 9% (2.90tons/day), inert materials 8% (2.58tons/day), sanitary 7% (2.25tons/day), textile 7% (2.25tons/day), others 6% (1.93tons/day), leather 4% (1.29tons/day) metals 3% (0.97tons/day), glass 2% (0.64tons/day) and e-waste 0% (0.0tons/day). The volume and distribution of polythene bags generated on campus had a positive significant statistical correlation with the distribution of commercial and academic structures on campus. Waste management options to optimize reuse, recycling and reduce waste generation were discussed. Copyright © 2017 Elsevier Ltd. All rights reserved.

  17. Microbiological and Toxicological Assessment of Pharmaceutical Wastewater from the Lagos Megacity, Nigeria

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    Avemaria Ifeoma Obasi

    2014-01-01

    Full Text Available We conducted a microbiological and toxicological profiling of a pharmaceutical wastewater, one of the major wastes entering the Lagos lagoon. The morphological characterization of seven bacterial isolates from the wastewater indicated that 4 of them were gram positive bacilli while 3 were cocci of both gram reactions. The bacterial isolates exhibited varying degrees of enzyme activities but most were able to hydrolyze starch to yield amylase. Only 3 of the isolates showed prospects as antibacterial agents, given their moderate inhibition to Staphylococcus xylosus relative to 8 other species tested. Overall, 81.3% of the isolates were resistant, and 3.3% were susceptible while 15.4% of the isolates showed intermediate sensitivity to the antibiotics. The assessment of antioxidant activities in liver samples of Nile tilapia, Oreochromis niloticus, exposed to sublethal concentrations of the effluents indicated some form of oxidative stress given the higher levels of lipid peroxidation product, malondialdehyde, in the exposed fishes relative to the control kept in dechlorinate tap water. But for reduced glutathione, activities of the antioxidative stress enzymes, superoxide dismutase (SOD, catalase (CAT, and glutathione-s-transferase (GST, were higher in the effluent exposed tilapia. Responses were not dose dependent and enzyme activities were often higher at day 14 compared to day 28. This relevance of the findings to water quality was discussed.

  18. Exposure to media content and sexual health behaviour among adolescents in Lagos metropolis, Nigeria.

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    Wusu, Onipede

    2013-06-01

    The influence of adolescents' exposure to sexual health content of mass media in their sexual health behaviour in Nigeria is still not clear. Data were gathered through a survey conducted among adolescents aged 12-19 years in Lagos metropolis between November 2009 and February 2010. A multistage sampling strategy was adopted in selecting respondents. Logistic regression technique was utilised in the analysis. The results indicate that the respondents were most frequently exposed to TV (male = 92.2; female = 94.9) and radio (male = 88.2; female = 91.7) media. The odds ratios indicate that sexual health content of mass media significantly predicted condom use, multiple sexual relationship, sexual intercourse and self reported occurrence of abortion in the study sample. The findings imply that positive media sexual health content is likely to promote sexual health among adolescents but negative contents can put adolescents' sexual health in danger. In addition, safe sex can be advanced among adolescents if the media provide accurate information on sexuality, emphasising the dangers of risky sexual practices. Finally, this study posits that accurate portrayal of sexuality in the media would contribute immensely to improving public health in the metropolis.

  19. Food hygiene behaviour and childhood diarrhoea in Lagos, Nigeria: a case-control study.

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    Ekanem, E E; Akitoye, C O; Adedeji, O T

    1991-09-01

    We investigated food hygiene-related behaviour as well as other risk factors for diarrhoea in children 6-36 months of age in Iwaya community in Lagos, Nigeria. Between April and July 1989, a bi-weekly diarrhoea surveillance was maintained in 672 households. Following the surveillance, 273 (case = 67 and control = 206) families were visited twice, each visit lasting for 3-4 hours. Detailed observations on food hygiene, water sanitation, and sanitary conditions of the home were made. There was no significant association between any of the observed food hygiene behaviours and the occurrence of diarrhoea. The presence of faeces in and around the toilet area (RR = 1.79), habit of defecating and urinating in chamber pots in dwelling units (RR = 1.80), indiscriminate disposal of waste (RR = 2.48), and source of domestic water (RR = 2.94) were the main factors significantly associated with the occurrence of diarrhoea in this community. These findings imply that diarrhoea might be reduced through an education programme which focuses on the proper care, handling and storage of defecation pots and proper disposal of waste.

  20. Pectinase Production by Bacillus and Paenibacillus sp. Isolated from Decomposing Wood Residues in the Lagos Lagoon

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    Busayo Tosin Akinyemi

    2017-09-01

    Full Text Available Three wood decomposing bacteria isolated from the Lagos lagoon, Bacillus megaterium, Bacillus bataviensis and Paenibacillus sp. were screened for their pectinase producing abilities using pectin as substrate under submerged fermentation (SMF conditions. The results showed that all three isolates produced appreciable pectinolytic activities. Paenibacillus sp. showed the highest pectinase activity when compared with the other two isolates. The optimum pH for pectinase activity for both B. megaterium and B. bataviensis was 8.0 while it was 6.5 for Paenibacillus sp., B. bataviensis, and B. megaterium showed optimum pectinase activity at 60°C and Paenibacillus sp. at 40°C. Metal ions such as Na+ and K+ improved the activity of pectinase produced by the three isolates when compared to the effect of Zn2+ and Mn2+. The molecular weights of the enzymes were also estimated by gel filtration as 29,512 da, 32,359 da, and 25,119 da for Paenibacillus sp., B. megaterium and B. bataviensis respectively. The study has provided a platform for further investigation into the biochemical characterization of the enzyme, and optimization of culture conditions to scale up pectinase production for commercial exploitation.