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Articles 1 - 30 of 31
Full-Text Articles in Environmental Public Health
Use Of Geographical Information Systems To Identify Counties In Georgia With High Risk For Childhood Lead Poisoning, R. Christopher Rustin, Christy Kuriatnyk, Byron Lobsinger, Simone Charles
Use Of Geographical Information Systems To Identify Counties In Georgia With High Risk For Childhood Lead Poisoning, R. Christopher Rustin, Christy Kuriatnyk, Byron Lobsinger, Simone Charles
R. Christopher Rustin
An Evaluation Of The Us High Production Volume (Hpv) Chemical-Testing Programme: A Study In (Ir)Relevance, Redundancy And Retro Thinking, Andrew Nicholson, Jessica Sandler, Troy Seidle
An Evaluation Of The Us High Production Volume (Hpv) Chemical-Testing Programme: A Study In (Ir)Relevance, Redundancy And Retro Thinking, Andrew Nicholson, Jessica Sandler, Troy Seidle
Troy Seidle, PhD
Under the US Environmental Protection Agency (EPA) High Production Volume (HPV) Challenge Programme, chemical companies have volunteered to conduct screening-level toxicity tests on approximately 2800 widely-used industrial chemicals. Participating companies are committed to providing available toxicity information to the EPA and presenting testing proposals for review by the EPA and posting on the EPA Web site as public information. People for the Ethical Treatment of Animals (PETA) and a coalition of animal protection organisations have reviewed all the test plans submitted by the participating chemical companies for compliance with the original HPV framework, as well as with animal welfare guidelines …
A Modular One-Generation Reproduction Study As A Flexible Testing System For Regulatory Safety Assessment, Richard Vogel, Troy Seidle, Horst Spielmann
A Modular One-Generation Reproduction Study As A Flexible Testing System For Regulatory Safety Assessment, Richard Vogel, Troy Seidle, Horst Spielmann
Troy Seidle, PhD
The European Union’s Registration, Evaluation and Authorisation of Chemicals (REACH) legislation mandates testing and evaluation of approximately 30,000 existing substances within a short period of time, beginning with the most widely used “high production volume” (HPV) chemicals. REACH testing requirements for the roughly 3000 HPV chemicals specify three separate tests for reproductive toxicity: two developmental toxicity studies on different animal species (OECD Test Guideline 414) and a two-generation reproduction toxicity study (OECD TG 416). These studies are highly costly in both economic and animal welfare terms. OECD TG 416 is a fertility study intended to evaluate reproductive performance of animals …
The Public Health Impacts Of Concentrated Animal Feeding Operations On Local Communities, Michael Greger, Gowri Koneswaran
The Public Health Impacts Of Concentrated Animal Feeding Operations On Local Communities, Michael Greger, Gowri Koneswaran
Michael Greger, MD, FACLM
Large-scale farm animal production facilities, also known as concentrated animal feeding operations (CAFOs), release a significant amount of contaminants into the air and water. Adverse health effects related to exposure to these contaminants among CAFO workers have been welldocumented; however, less is known about their impact on the health of residents in nearby communities. Epidemiological research in this area suggests that neighboring residents are at increased risk of developing neurobehavioral symptoms and respiratory illnesses, including asthma. Additional research is needed to better understand community-scale exposures and health outcomes related to the management practices and emissions of CAFOs.
Lead In Green Turf, Shawn Gerstenberger
Lead In Green Turf, Shawn Gerstenberger
Shawn Gerstenberger
Green turf. You see it everywhere: football fields, day care centers, parks.... But is it safe? A UNLV professor says it can release lead, which people could inhale or ingest. But the Synthetic Turf Council says no one has reported bad effects. How safe is the turf we play on? How can we change it? The research professor breaks down the green turf situation for us.
Microbes In Pool Filter Backwash As Evidence Of The Need For Improved Swimmer Hygiene — Metro-Atlanta, Georgia, 2012, Christopher Hutcheson, Ryan Cira, Stanley L. Gaines, Kevin R. Jones, Walter Howard, David Hornsby, Maurice Redmond, R. Christopher Rustin, Michele C. Hlavsa, Jennifer L. Murphy, Jothikumar Narayanan, Candace D. Miller, Brittany Cantrell, Vincent R. Hill, Michael J. Beach
Microbes In Pool Filter Backwash As Evidence Of The Need For Improved Swimmer Hygiene — Metro-Atlanta, Georgia, 2012, Christopher Hutcheson, Ryan Cira, Stanley L. Gaines, Kevin R. Jones, Walter Howard, David Hornsby, Maurice Redmond, R. Christopher Rustin, Michele C. Hlavsa, Jennifer L. Murphy, Jothikumar Narayanan, Candace D. Miller, Brittany Cantrell, Vincent R. Hill, Michael J. Beach
R. Christopher Rustin
An Assessment Of The Effects Of Desertification In Yobe State, Nigeria, Jibril Musa Phd
An Assessment Of The Effects Of Desertification In Yobe State, Nigeria, Jibril Musa Phd
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
Desertification is one of the most serious environmental and socio-economic problems of our time. Desertification describes circumstances of land degradation in arid, semi-arid and dry sub-humid regions resulting from the climatic variation and human activities. The fundamental goal of this thesis was to assess the effects of desertification in Yobe State, Nigeria. The present threat of desertification in the sahel has reached an alarming stage where crops cultivation and animal rearing/grazing are no more productive, soil has lost its nutrient/fertility, various infrastructure had given way because of windstorm from the neighbouring Niger Republic and sand dunes had taken over. The …
Using Remote Sensing Data To Improve Rice Production In Kutigi, Niger State, Nigeria, Jibril Musa Phd, M B. Yunusa
Using Remote Sensing Data To Improve Rice Production In Kutigi, Niger State, Nigeria, Jibril Musa Phd, M B. Yunusa
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
This research work looked in the used of Remote Sensing to improve Agricultural production in Kutigi, Niger State. The aim of the study is to use remote sensing to improve rice farming activities in Kutigi, Niger State. It is very important to identify such methods to improve Agricultural production because experts are always interested in new researches and findings to better the standard of living in any environment. In view of this, Remotely-sensed data could be used or employed to elevate most of these agricultural problems in Kutigi through the following objectives: Using Landsat imagery to assess the present landuse …
Vulnerability Of Mountain Rivers To Waste Dumping From Neamț County, Florin C. Mihai, Liviu Apostol, Adrian Ursu, Pavel Ichim
Vulnerability Of Mountain Rivers To Waste Dumping From Neamț County, Florin C. Mihai, Liviu Apostol, Adrian Ursu, Pavel Ichim
Florin C MIHAI
Lack of waste management facilities from mountain region often lead to uncontrolled disposal of waste on river banks polluting the local environment and damaging the tourism potential. Geographical conditions influences the distribution of human settlements which are located along the rivers and its tributaries. This paper aims to estimate the amounts of household waste generated and uncollected disposed into mountain rivers, taking into account several factors such as:proximity of rivers to the human settlements, the morphology of villages, length of river that crosses the locality(built up areas), local population, the access to waste collection services and waste management infrastructure. Vulnerability …
Variations In Climatic Parameters And Food Crop Yields: Implications On Food Security In Benue State, Nigeria., Emmanuel Adamgbe, Fanan Ujoh
Variations In Climatic Parameters And Food Crop Yields: Implications On Food Security In Benue State, Nigeria., Emmanuel Adamgbe, Fanan Ujoh
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
Agricultural production in Nigeria like in other developing countries is highly vulnerable to variations in climatic parameters which may have inverse or direct effect on the performance of food crops. This paper examines the patterns and trends of the variations in the climatic parameters and the implications of such variations on efficient yield rates of some food crops in Benue State using data on climatic variables (rainfall, temperature, sunshine) and the yield of some crops per hectare for 25 years (1986-2010). Data on the climatic variables were collected from the Nigerian Meteorological Agency, AirForce Base, Makurdi while the data on …
Human Development And Resources Use In The Coastal Zone: Influences On Human Health, Robert E. Bowen, Anamarija Frankic, Mary E. Davis
Human Development And Resources Use In The Coastal Zone: Influences On Human Health, Robert E. Bowen, Anamarija Frankic, Mary E. Davis
Robert E. Bowen
Coastal watersheds and nearshore marine areas are the most valuable and dynamic places on Earth. Human population growth is great in these regions, which are home to some of the most sensitive habitats in the world. Coastal areas provide more than half of the overall service value derived from the global environment (Costanza et al., 1997). Natural (e.g., hurricanes and tsunamis) and human pressures on this environment require it to constantly adjust. More than any other area, the global coast has defined the progress of human culture and continues to be a singular influence in how humans connect to the …
Dynamics Of Land Use/Land Cover Changes And Its Implication On Food Security In Anyigba, North Central, Nigeria, Tokula E. Arome, Sunday P. Ejaro (Phd)
Dynamics Of Land Use/Land Cover Changes And Its Implication On Food Security In Anyigba, North Central, Nigeria, Tokula E. Arome, Sunday P. Ejaro (Phd)
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
This study assessed land use/land cover changes and its effect on Agricultural land in Anyigba. The objectives were to identify and delineate different land use / land cover categories, assess the rate of change that occurred and examine the impact of land use/land cover change on food security using satellite remote sensing data collected at three different years (1987 Land sat TM, 2001 Land Sat TM and 2011 Land Sat ETM). The study utilized GIS software such as Idrisi Andes academic and ArcGIS 9.3. The study area covers approximately 31.8km2, and four major land use/cover classes were utilized (built up, …
Socio-Economic Effects Of Demolishing Squatter Settlements And Illegal Structures In Abuja Metropolis, Federal Capital Territory, Nigeria, Ishaku Iy Mallo Phd, Victor G. Obasanya
Socio-Economic Effects Of Demolishing Squatter Settlements And Illegal Structures In Abuja Metropolis, Federal Capital Territory, Nigeria, Ishaku Iy Mallo Phd, Victor G. Obasanya
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
Abuja the Federal Capital Territory and study area is located between latitudes 8o25’ and 9o25’ North of the Equator and longitudes 6o45’ and 7o45’ East of the Greenwich Meridian. The study was carried out in Abuja Phase 1, and it is aimed at highlighting various socioeconomic effects of demolition of illegal structures and informal or squatter settlements on the people within the study area. Data was collected through reconnaissance survey, personal interviews with respondents, and a well laid out questionnaire. The results indicate that the demolition exercise embarked upon by the authorities in the Federal Capital Territory was a response …
Rainfall Variability And Crop Zones Classification For The Federal Capital Territory, Nigeria, Shaibu M. Hassan Phd
Rainfall Variability And Crop Zones Classification For The Federal Capital Territory, Nigeria, Shaibu M. Hassan Phd
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
This study aims at analyzing agro-climatological parameters and establishing a link between some selected agro-climatological indices and sustainability of agricultural production in the Federal Capital Territory (FCT). Two sets of data, climatic and crop yield data were collected and subjected to various agro-climatological analyses. Agro-climatological analyses include the derivation of Onset, Cessation and Length of Rainy Season (LRS), Seasonality Index, Drought Index and Precipitation Periodicity Index. The statistical analyses include monthly and annual means, deviation from the mean, trend line. The result of moisture index in line with crops optimum moisture requirement was used to classify the Territory into agro-climatic …
Beta Interferon-Mediated Activation Of Signal Transducer And Activator Of Transcription Protein 1 Interferes With Rickettsia Conorii Replication In Human Endothelial Cells, Punsiri M. Colonne, Marina Eremeeva, Sanjeev K. Sahni
Beta Interferon-Mediated Activation Of Signal Transducer And Activator Of Transcription Protein 1 Interferes With Rickettsia Conorii Replication In Human Endothelial Cells, Punsiri M. Colonne, Marina Eremeeva, Sanjeev K. Sahni
Marina E. Eremeeva
Infection of the endothelial cell lining of blood vessels with Rickettsia conorii, the causative agent of Mediterranean spotted fever, results in endothelial activation. We investigated the effects of R. conorii infection on the status of the Janus kinase (JAK)-signal transducer and activator of transcription protein (STAT) signaling pathway in human microvascular endothelial cells (HMECs), the most relevant host cell type, in light of rickettsial tropism for microvascular endothelium in vivo. R. conoriiinfection induced phosphorylation of STAT1 on tyrosine 701 and serine 727 at 24, 48, and 72 h postinfection in HMECs. Employing transcription profile analysis and neutralizing …
Rickettsia Felis In Cat Fleas, Ctenocephalides Felis Parasitizing Opossums, San Bernardino County, California, Kyle F. Abramowicz, J. W. Wekesa, C. N. Nwadike, Maria L. Zambrano, Sandor E. Karpathy, D. Cecil, J. Burns, Renjie Hu, Marina Eremeeva
Rickettsia Felis In Cat Fleas, Ctenocephalides Felis Parasitizing Opossums, San Bernardino County, California, Kyle F. Abramowicz, J. W. Wekesa, C. N. Nwadike, Maria L. Zambrano, Sandor E. Karpathy, D. Cecil, J. Burns, Renjie Hu, Marina Eremeeva
Marina E. Eremeeva
Los Angeles and Orange Counties are known endemic areas for murine typhus in California; however, no recent reports of flea-borne rickettsioses are known from adjacent San Bernardino County. Sixty-five opossums (Didelphis virginiana) were trapped in the suburban residential and industrial zones of the southwestern part of San Bernardino County in 2007. Sixty out of 65 opossums were infested with fleas, primarily cat fleas, Ctenocephalides felis (Bouché, 1835). The flea minimum infection rate with Rickettsia felis was 13.3% in pooled samples and the prevalence was 23.7% in single fleas, with two gltA genotypes detected. In spite of historic …
Assessment Of Organic And Inorganic Phosphorus In Soils Derived From Cretaceous Sediments And Basement Complex Soils Of Guinea Savannah Of Kogi State, North Central Nigeria, Sunday I. Amhakhian, H H. Isitekhale, Charles I. Oyewole
Assessment Of Organic And Inorganic Phosphorus In Soils Derived From Cretaceous Sediments And Basement Complex Soils Of Guinea Savannah Of Kogi State, North Central Nigeria, Sunday I. Amhakhian, H H. Isitekhale, Charles I. Oyewole
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
A pot experiment was carried out using 20 surface soils (0-15cm depth) in 2008 to assess soil organic phosphorus and some fraction of inorganic phosphorus in other to know their availability in the soils of the studied area and also work have not been done in this areas in respect to organic and in-organic phosphorus. The experiment was conducted using 20 soils 10 from each geological formation (Cretaceous sediments and Basement complex soils), respectively. The mean organic phosphorus of 63.51 mgkg 1 soil was obtained for Cretaceous sediment soils and 158.54 mgkg 1 soil for the basement complex soils respectively. …
Development Of Functional Indices Of Facility Occurrence Towards The Distribution Of Social Services In Lagos Island Nigeria., Augustus O. Atubi
Development Of Functional Indices Of Facility Occurrence Towards The Distribution Of Social Services In Lagos Island Nigeria., Augustus O. Atubi
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
Proper coordination of transport and public facilities provision is vital to any balanced regional development strategy. The central aim of this study, therefore, is to find out what the relationship is between access to the transport network and the provision of functional indices of facility occurrence towards the distribution of social services in Lagos Island, Nigeria. In particular it seeks to find out areas that have below or above average level of facility occurrences relative to the level of accessibility. However, a pair wise correlation matrix of the eleven (11) variables employed in the index construction was carried out. The …
Urban Climate And Challenges Of Tropical Cities, B E. Omogbai
Urban Climate And Challenges Of Tropical Cities, B E. Omogbai
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
This study examines the nature of urban climate, features and the challenges on the developing tropical cities in the 21st century. It argues that the use of principles of urban climate would help in providing comfortable living conditions and problem immune working environments for the inhabitants of tropical cities. The findings reveal that owing to poor environmental planning, inadequate geotechnical landscape surveys prior to the development of urban infrastructures, and non-adherence to the principles of urban climate, challenges of landscape degradation, excessive flooding of the built infrastructures, heat-island effects, and collapse of buildings have emerged. Suggested measures to avert these …
Detecting Changes In Landuse/Cover Of Umuahia, South-Eastern Nigeria Using Remote Sensing And Gis Techniques, Fanan Ujoh, Olarewaju Oluseyi Ifatimehin, Adams Ndalai Baba
Detecting Changes In Landuse/Cover Of Umuahia, South-Eastern Nigeria Using Remote Sensing And Gis Techniques, Fanan Ujoh, Olarewaju Oluseyi Ifatimehin, Adams Ndalai Baba
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
Since 1991 when it became the capital city of Abia State, Umuahia has undergone tremendous transformation in its land use and land cover due to rapid urbanization. The main materials employed for this study are a land use map (1991) and Landsat ETM+satellite image (2007) of the study area. These, combined with field survey/checks, were brought into a GIS environment using ILWIS 3.2 Academic image classification software to map the land use/land cover and to estimate the rate of urban expansion and loss of rural land at the peri-urban fringes of Umuahia between 1991 and 2007. The study revealed significant …
Gender Participation In The Management Of Tricycle Transport For Youth Empowerment And Sustainable Development In Kano State, Nigeria, Nuratu Muhammed
Gender Participation In The Management Of Tricycle Transport For Youth Empowerment And Sustainable Development In Kano State, Nigeria, Nuratu Muhammed
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
The research examined gender participation in the management of tricycle for youth empowerment and sustainable development in Kano state, Nigeria. Stratified random sampling technique was used to select samples of drivers(150), passengers (150) and owners/managers the female tricycle owners fell under this category and they numbered(65).All together a total of 365 samples were selected for the study. Data obtained from the primary data was analyzed using simple statistical techniques and chi square test to ascertain whether there was any significant differences in some of the variables tested. The results of the analysis revealed that the main difference was found in …
Environmental Problems Of Industrialization And Sustainable Development In Nigeria - A Review, Adejoh Iyaji
Environmental Problems Of Industrialization And Sustainable Development In Nigeria - A Review, Adejoh Iyaji
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
The main objective of this paper is to examine the impact of the quest for industrialization on the environment in Nigeria; others include, the identification of the objectives of sustainable development as well as making recommendations that will lead to the much needed sustainable environment both for the present generation and generations yet unborn. The researcher relied principally on secondary sources of data for this paper which is theoretical in approach. Findings revealed the emergence of a host of environmental problems such as air pollution, deforestation, desertification, solid and hazardous waste problems in the wake of the quest for industrialization. …
Eschar-Associated Spotted Fever Rickettsiosis, Bahia, Brazil, Nanci Silva, Marina Eremeeva, Tatiana Rozental, Guilherme S. Ribeiro, Christopher D. Paddock, Eduardo Antonio G. Ramos, Alexsandra R.M. Favacho, Mitermayer G. Reis, Gregory A. Dasch,, Elba R.S. De Lemos, Albert I. Ko
Eschar-Associated Spotted Fever Rickettsiosis, Bahia, Brazil, Nanci Silva, Marina Eremeeva, Tatiana Rozental, Guilherme S. Ribeiro, Christopher D. Paddock, Eduardo Antonio G. Ramos, Alexsandra R.M. Favacho, Mitermayer G. Reis, Gregory A. Dasch,, Elba R.S. De Lemos, Albert I. Ko
Marina E. Eremeeva
In Brazil, Brazilian spotted fever was once considered the only tick-borne rickettsial disease. We report eschar-associated rickettsial disease that occurred after a tick bite. The etiologic agent is most related to Rickettsia parkeri, R. africae, and R. sibirica and probably widely distributed from São Paulo to Bahia in the Atlantic Forest.
Spatial Distribution Of Commercial Banks In Ilorin Metropolis, Kwara State, Nigeria, I B. Abdullahi, M A. Ijaiya, A Abdulraheem, R I. Abdulkadir, R O. Ibrahim
Spatial Distribution Of Commercial Banks In Ilorin Metropolis, Kwara State, Nigeria, I B. Abdullahi, M A. Ijaiya, A Abdulraheem, R I. Abdulkadir, R O. Ibrahim
Confluence Journal of Environmental Studies (CJES), Kogi State University, Nigeria
The spatial distribution of banks in any geographic entity determines the level of accessibility to its services by the public. This study examined the pattern of banks distribution in Ilorin metropolis. Field survey was employed in determining the number of available commercial banks and their respective distances between each other. The spatial analysis technique such as the nearest neighbour analysis as used ascertain the degree of clustering, density and the average distance taken to access these services. The study revealed that about 96% of the total number of banks are situated in the Central Business District which exhibited a very …
Emergence Of A Novel Human Ehrlichia-Muris Like Organism In North America – Wisconsin And Minnesota, Bobbi S. Pritt, Lynne M. Sloan, Diep K. Hoang-Johnson, Ulrike G. Munderloh, Susan M. Paskewitz, Kristina M. Mcelroy, Jevon D. Mcfadden, Matthew J. Binnicker, David F. Neitzel, Gongping Liu, William L. Nicholson, Curtis M. Nelson, Joni J. Franson, Scott A. Martin, Scott A. Cunningham, Christopher R. Steward, Kay Bogumill, Mary E. Bjorgaard, Jeffrey P. Davis, Jennifer H. Mcquiston, David M. Warshauer, Mark P. Wilhelm, Robin Patel, Vipul A. Trivedi, Marina Eremeeva
Emergence Of A Novel Human Ehrlichia-Muris Like Organism In North America – Wisconsin And Minnesota, Bobbi S. Pritt, Lynne M. Sloan, Diep K. Hoang-Johnson, Ulrike G. Munderloh, Susan M. Paskewitz, Kristina M. Mcelroy, Jevon D. Mcfadden, Matthew J. Binnicker, David F. Neitzel, Gongping Liu, William L. Nicholson, Curtis M. Nelson, Joni J. Franson, Scott A. Martin, Scott A. Cunningham, Christopher R. Steward, Kay Bogumill, Mary E. Bjorgaard, Jeffrey P. Davis, Jennifer H. Mcquiston, David M. Warshauer, Mark P. Wilhelm, Robin Patel, Vipul A. Trivedi, Marina Eremeeva
Marina E. Eremeeva
Background: Ehrlichiosis is a clinically important, emerging zoonosis. Only Ehrlichia chaffeensis and E. ewingii have been thought to cause ehrlichiosis in humans in the United States. Patients with suspected ehrlichiosis routinely undergo testing to ensure proper diagnosis and to ascertain the cause.
Methods: We used molecular methods, culturing, and serologic testing to diagnose and ascertain the cause of cases of ehrlichiosis.
Results: On testing, four cases of ehrlichiosis in Minnesota or Wisconsin were found not to be from E. chaffeensis or E. ewingii and instead to be caused by a newly discovered ehrlichia species.
All patients had fever, …
Adaptive Responses To Flooding Incidents In Ilorin, Kwara State, Nigeria, Habiba I. Jimoh, Kayode A. Iroye
Adaptive Responses To Flooding Incidents In Ilorin, Kwara State, Nigeria, Habiba I. Jimoh, Kayode A. Iroye
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
Incidents of floods which are mainly caused by changes in landuse is fast becoming a city life experience in Ilorin as in most urban centres in Nigeria causing untold hardships and sometimes loss of lives. This extreme hydro-meteorological event is also being exacerbated by climate change which thus calls for adaptive response by residents towards reducing its risks, hence this study. Data used were generated from direct field measurements and questionnaire administration. Descriptive statistics and cross tabulations were used in analyzing the data. Results obtained indicate that most respondents use a wide range of non-structural adaptive response to flood. The …
An Assessment Of Socio-Economic Impact Of Waste Scavenging As A Means Of Poverty Alleviation In Gwagwalada, Abuja., John Yakubu Magaji, Samuel Panse Dakyes
An Assessment Of Socio-Economic Impact Of Waste Scavenging As A Means Of Poverty Alleviation In Gwagwalada, Abuja., John Yakubu Magaji, Samuel Panse Dakyes
Confluence Journal Environmental Studies (CJES), Kogi State University, Nigeria
Waste scavengers are usually perceived as being among the poor, and scavenging is considered a marginal activity. They tend to have low incomes, but can obtained decent earning when they are not exploited by middlemen. This study was conducted in Gwagwalada town with the aim of assessing the socio-economic impact of scavenging on the people. A structured questionnaire was constructed to capture the demographic characteristics of the scavengers, their experiences, types of items scavenged, the economic gains and the challenges being faced. The target pollution is waste scavengers and a random sampling technique was adopted in selecting the respondents for …
Rocky Mountain Spotted Fever In Panama: A Cluster Description, Maribel Tribaldos, Yamitzel Zaldivar, Sergio Bermudez, Franklyn Samudio, Yaxelis Mendoza, Alexander A. Martinez, Rodrigo Villalobos, Marina Eremeeva, Christopher D. Paddock, Kathleen Page, Rebecca E. Smith, Juan Miguel Pascale
Rocky Mountain Spotted Fever In Panama: A Cluster Description, Maribel Tribaldos, Yamitzel Zaldivar, Sergio Bermudez, Franklyn Samudio, Yaxelis Mendoza, Alexander A. Martinez, Rodrigo Villalobos, Marina Eremeeva, Christopher D. Paddock, Kathleen Page, Rebecca E. Smith, Juan Miguel Pascale
Marina E. Eremeeva
Rocky Mountain spotted fever (RMSF) is a tick-borne infection caused by Rickettsia rickettsii. We report a cluster of fatal cases of RMSF in 2007 in Panama, involving a pregnant woman and two children from the same family. The woman presented with a fever followed by respiratory distress, maculopapular rash, and an eschar at the site from which a tick had been removed. She died four days after disease onset. This is the second published report of an eschar in a patient confirmed by PCR to be infected with R. rickettsii. One month later, the children presented within days of one …
Aflatoxin B1 Albumin Adducts In Plasma And Aflatoxin M1 In Urine Are Associated With Plasma Concentrations Of Vitamins A And E, Francis A. Obuseh, Pauline E. Jolly, Yi Jiang, Faisal M. B. Shuaib, John Waterbor, William O. Ellis, Chandrika J. Piyathilake, Renee A. Desmond, Evans Afriyie-Gyawu, Timothy D. Phillips
Aflatoxin B1 Albumin Adducts In Plasma And Aflatoxin M1 In Urine Are Associated With Plasma Concentrations Of Vitamins A And E, Francis A. Obuseh, Pauline E. Jolly, Yi Jiang, Faisal M. B. Shuaib, John Waterbor, William O. Ellis, Chandrika J. Piyathilake, Renee A. Desmond, Evans Afriyie-Gyawu, Timothy D. Phillips
Evans Afriyie-Gyawu
Background: Although aflatoxin exposure has been shown to be associated with micronutrient deficiency in animals, there are few investigations on the effects of aflatoxin exposure on micronutrient metabolism in humans.
Objective: To examine the relationship between aflatoxin B1 (AFB1) albumin adducts (AF-ALB) in plasma and the aflatoxin M1 (AFM1) metabolite in urine and plasma concentrations of retinol (vitamin A) and α-tocopherol (vitamin E) in Ghanaians.
Methods: A cross-sectional study of 147 adult participants was conducted. Blood and urine samples were tested for aflatoxin and vitamins A and E levels.
Results: Multivariable analysis showed that participants with high AF-ALB (≥ 0.80 …
Fluoranthene, But Not Benzo[A]Pyrene, Interacts With Hypoxia Resulting In Pericardial Effusion And Lordosis In Developing Zebrafish, Cole W. Matson, Alicia R. Timme-Laragy, Richard T. Di Giulio
Fluoranthene, But Not Benzo[A]Pyrene, Interacts With Hypoxia Resulting In Pericardial Effusion And Lordosis In Developing Zebrafish, Cole W. Matson, Alicia R. Timme-Laragy, Richard T. Di Giulio
Alicia R. Timme-Laragy
Previous research has documented several PAHs that interact synergistically, causing severe teratogenicity in developing fish embryos. The coexposure of CYP1A inhibitors (e.g. FL or ANF) with AHR agonists (e.g. BaP or BNF) results in a synergistic increase in toxicity. As with chemical CYP1A inhibitors, it has also been shown that CYP1A morpholinos exacerbate BNF-induced embryotoxicity. We hypothesized that a hypoxia-induced reduction in CYP1A activity in BNF or BaP-exposed zebrafish embryos would similarly enhance pericardial effusion and other developmental abnormalities. BaP, BNF, ANF, and FL exposures, both individually and as BaP+FL or BNF+ANF combinations, were performed under hypoxia and normoxia. CYP1A …