ݺߣshows by User: EvensEmmanuel / http://www.slideshare.net/images/logo.gif ݺߣshows by User: EvensEmmanuel / Sun, 18 Jan 2015 20:57:13 GMT ݺߣShare feed for ݺߣshows by User: EvensEmmanuel Laboratoire Santé-Environnement FSSA-UniQ https://fr.slideshare.net/slideshow/laboratoire-santenvironnement/43644941 lels-e06192013modedecompatibilit-150118205713-conversion-gate02
Le Laboratoire Santé-Environnement de l´Ùniversité Quisqueya en Haïti]]>
Le Laboratoire Santé-Environnement de l´Ùniversité Quisqueya en Haïti]]> Sun, 18 Jan 2015 20:57:13 GMT https://fr.slideshare.net/slideshow/laboratoire-santenvironnement/43644941 EvensEmmanuel@slideshare.net(EvensEmmanuel) Laboratoire Santé-Environnement FSSA-UniQ EvensEmmanuel Le Laboratoire Santé-Environnement de l´Ùniversité Quisqueya en Haïti <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/lels-e06192013modedecompatibilit-150118205713-conversion-gate02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Le Laboratoire Santé-Environnement de l´Ùniversité Quisqueya en Haïti
from Evens Emmanuel
]]> 418 16 https://cdn.slidesharecdn.com/ss_thumbnails/lels-e06192013modedecompatibilit-150118205713-conversion-gate02-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Risk factor Cryptosporidium /slideshow/21-05-62nd-annual-meeting-of-the-southeastern-vaee-mode-de-compatibilit/43644847 21-0562ndannualmeetingofthesoutheasternvaeemodedecompatibilit-150118204806-conversion-gate01
ANALYSIS OF RISK FACTORS ASSOCIATED WITH TRANSFERS OF CRYPTOSPORIDIUM OOCYSTS IN AQUATIC ECOSYSTEMS OF HAITI BALTHAZARD-ACCOU, Ketty1, PATRICE, Agnamey2, CLERVIL, Elmyre1, and EMMANUEL, Evens1, (1) Universite Quisqueya, 218, Avenue Jean Paul II, Haut de Turgeau, Port-au- Prince, HT6114, Haiti, kettybal@gmail.com, (2) Universite Picardie Jules Verne, Faculté de médecine et CHU d’Amiens, Amiens, 80054, France Cryptosporidium are protozoan parasites that infect the intestines of many vertebrates, including humans. They cause cryptosporidiosis; one of the main traits of chronic diarrhea in immunocompromised patients infected with HIV and acute diarrhea in young children. In Haiti, the intestinal cryptosporidiosis is caused by at least three species: Cryptosporidium hominis, C. parvum and C. felis wich are responsible for 17% of acute diarrhea in children less than 2 years and 30% of chronic diarrhea in patients infected with HIV. Transmission of Cryptosporidium oocysts is often caused by the ingestion of contaminated food or water. In previous studies, Cryptosporidium oocysts have been detected in surface water and groundwater from three major cities of Haiti: Port-au-Prince, Cap-Haitian and Les Cayes. Significant concentrations from 4 to 1274 oocysts in 100 liters of filtered water were determined in Port-au-Prince; in the city of Cap-Haitian 741 to 6088 and concentrations ranging from 5 to 100 oocysts have been obtained in groundwater from Les Cayes. Results indicate that water resources in Haiti are widely contaminated with Cryptosporidium oocysts. Therefore, they may constitute potential sources of biological risk particularly for human health. Since Cryptosporidium oocysts are biological colloids, it is important to analyze the different risk factors associated with transfers of Cryptosporidium oocysts in aquatic ecosystems of Haiti.]]>
ANALYSIS OF RISK FACTORS ASSOCIATED WITH TRANSFERS OF CRYPTOSPORIDIUM OOCYSTS IN AQUATIC ECOSYSTEMS OF HAITI BALTHAZARD-ACCOU, Ketty1, PATRICE, Agnamey2, CLERVIL, Elmyre1, and EMMANUEL, Evens1, (1) Universite Quisqueya, 218, Avenue Jean Paul II, Haut de Turgeau, Port-au- Prince, HT6114, Haiti, kettybal@gmail.com, (2) Universite Picardie Jules Verne, Faculté de médecine et CHU d’Amiens, Amiens, 80054, France Cryptosporidium are protozoan parasites that infect the intestines of many vertebrates, including humans. They cause cryptosporidiosis; one of the main traits of chronic diarrhea in immunocompromised patients infected with HIV and acute diarrhea in young children. In Haiti, the intestinal cryptosporidiosis is caused by at least three species: Cryptosporidium hominis, C. parvum and C. felis wich are responsible for 17% of acute diarrhea in children less than 2 years and 30% of chronic diarrhea in patients infected with HIV. Transmission of Cryptosporidium oocysts is often caused by the ingestion of contaminated food or water. In previous studies, Cryptosporidium oocysts have been detected in surface water and groundwater from three major cities of Haiti: Port-au-Prince, Cap-Haitian and Les Cayes. Significant concentrations from 4 to 1274 oocysts in 100 liters of filtered water were determined in Port-au-Prince; in the city of Cap-Haitian 741 to 6088 and concentrations ranging from 5 to 100 oocysts have been obtained in groundwater from Les Cayes. Results indicate that water resources in Haiti are widely contaminated with Cryptosporidium oocysts. Therefore, they may constitute potential sources of biological risk particularly for human health. Since Cryptosporidium oocysts are biological colloids, it is important to analyze the different risk factors associated with transfers of Cryptosporidium oocysts in aquatic ecosystems of Haiti.]]> Sun, 18 Jan 2015 20:48:06 GMT /slideshow/21-05-62nd-annual-meeting-of-the-southeastern-vaee-mode-de-compatibilit/43644847 EvensEmmanuel@slideshare.net(EvensEmmanuel) Risk factor Cryptosporidium EvensEmmanuel ANALYSIS OF RISK FACTORS ASSOCIATED WITH TRANSFERS OF CRYPTOSPORIDIUM OOCYSTS IN AQUATIC ECOSYSTEMS OF HAITI BALTHAZARD-ACCOU, Ketty1, PATRICE, Agnamey2, CLERVIL, Elmyre1, and EMMANUEL, Evens1, (1) Universite Quisqueya, 218, Avenue Jean Paul II, Haut de Turgeau, Port-au- Prince, HT6114, Haiti, kettybal@gmail.com, (2) Universite Picardie Jules Verne, Faculté de médecine et CHU d’Amiens, Amiens, 80054, France Cryptosporidium are protozoan parasites that infect the intestines of many vertebrates, including humans. They cause cryptosporidiosis; one of the main traits of chronic diarrhea in immunocompromised patients infected with HIV and acute diarrhea in young children. In Haiti, the intestinal cryptosporidiosis is caused by at least three species: Cryptosporidium hominis, C. parvum and C. felis wich are responsible for 17% of acute diarrhea in children less than 2 years and 30% of chronic diarrhea in patients infected with HIV. Transmission of Cryptosporidium oocysts is often caused by the ingestion of contaminated food or water. In previous studies, Cryptosporidium oocysts have been detected in surface water and groundwater from three major cities of Haiti: Port-au-Prince, Cap-Haitian and Les Cayes. Significant concentrations from 4 to 1274 oocysts in 100 liters of filtered water were determined in Port-au-Prince; in the city of Cap-Haitian 741 to 6088 and concentrations ranging from 5 to 100 oocysts have been obtained in groundwater from Les Cayes. Results indicate that water resources in Haiti are widely contaminated with Cryptosporidium oocysts. Therefore, they may constitute potential sources of biological risk particularly for human health. Since Cryptosporidium oocysts are biological colloids, it is important to analyze the different risk factors associated with transfers of Cryptosporidium oocysts in aquatic ecosystems of Haiti. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/21-0562ndannualmeetingofthesoutheasternvaeemodedecompatibilit-150118204806-conversion-gate01-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> ANALYSIS OF RISK FACTORS ASSOCIATED WITH TRANSFERS OF CRYPTOSPORIDIUM OOCYSTS IN AQUATIC ECOSYSTEMS OF HAITI BALTHAZARD-ACCOU, Ketty1, PATRICE, Agnamey2, CLERVIL, Elmyre1, and EMMANUEL, Evens1, (1) Universite Quisqueya, 218, Avenue Jean Paul II, Haut de Turgeau, Port-au- Prince, HT6114, Haiti, kettybal@gmail.com, (2) Universite Picardie Jules Verne, Faculté de médecine et CHU d’Amiens, Amiens, 80054, France Cryptosporidium are protozoan parasites that infect the intestines of many vertebrates, including humans. They cause cryptosporidiosis; one of the main traits of chronic diarrhea in immunocompromised patients infected with HIV and acute diarrhea in young children. In Haiti, the intestinal cryptosporidiosis is caused by at least three species: Cryptosporidium hominis, C. parvum and C. felis wich are responsible for 17% of acute diarrhea in children less than 2 years and 30% of chronic diarrhea in patients infected with HIV. Transmission of Cryptosporidium oocysts is often caused by the ingestion of contaminated food or water. In previous studies, Cryptosporidium oocysts have been detected in surface water and groundwater from three major cities of Haiti: Port-au-Prince, Cap-Haitian and Les Cayes. Significant concentrations from 4 to 1274 oocysts in 100 liters of filtered water were determined in Port-au-Prince; in the city of Cap-Haitian 741 to 6088 and concentrations ranging from 5 to 100 oocysts have been obtained in groundwater from Les Cayes. Results indicate that water resources in Haiti are widely contaminated with Cryptosporidium oocysts. Therefore, they may constitute potential sources of biological risk particularly for human health. Since Cryptosporidium oocysts are biological colloids, it is important to analyze the different risk factors associated with transfers of Cryptosporidium oocysts in aquatic ecosystems of Haiti.
Risk factor Cryptosporidium from Evens Emmanuel
]]> 495 4 https://cdn.slidesharecdn.com/ss_thumbnails/21-0562ndannualmeetingofthesoutheasternvaeemodedecompatibilit-150118204806-conversion-gate01-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Efficiency of Zea mays L. in the retention of nutrients in the interstitial water /slideshow/21-06-evens-emmanuel-gsa-mach-20th/43644625 21-06evensemmanuelgsamach20th-150118203037-conversion-gate02
Many chemical substances rejected into the natural environment accumulate in the vases or muds constituting the sediments. Nowadays, in order to reduce human health and ecological risks, also to prevent the blockage of drainage channels and manage flood risks, operations of dredging are accomplished everywhere across the world. In European countries dredged sediments are used sometimes as manure to fertilizer agricultural soils. In Port-au-Prince, operations of dredging are usually realized on “Bois-de-Chêne” river or channel. The Channel sediments are exposed to wastewater from the Urban Community of Port-au-Prince. After the operations of dredging, the polluted sediments, including solid wastes, are deposited on a site very close to the bay of Port-au-Prince. This discharge allows to a transfer of pollutants to ocean. Indeed, these sediments mixed with solid and liquid wastes can contribute to an eutrophication hazard for the marine ecosystem of Port-au-Prince. Terrestrial ecohydrology approaches, based on phytotechnology, are mostly used to reduce and manage hazards or risks linked to contaminated sediments. In order to eliminate pollutants containing in the polluted dredged sediments from drainage channel of Port-au-Prince. Zea mays L. has been used, as ecohydrological agent, in this study to reduce the toxicity of sediments chemical compounds on natural ecosystems. The analysis of pore water of the sediments taken at three (3) points along the channel has allowed showing the Toxicity of the experimental material in nitrogen and phosphorus compounds. The nitrogen (nitrates, ammonia) and phosphorus (phosphate) pollutants were determined according to the french standards. The phosphate values, in particular, are higher of more than 7 times than the maximum limit (2 mg/L). The latter consisted in trapping the mineral compounds by the vegetable material. The measured physical parameters reveal that corn samples raised in the sediments had a better growth than those in the pilot ground from Damien farm. The analysis of collected plants samples shows the potentialities of Zea mays L in the phytoremediation of nitrogen and phosphorus.]]>
Many chemical substances rejected into the natural environment accumulate in the vases or muds constituting the sediments. Nowadays, in order to reduce human health and ecological risks, also to prevent the blockage of drainage channels and manage flood risks, operations of dredging are accomplished everywhere across the world. In European countries dredged sediments are used sometimes as manure to fertilizer agricultural soils. In Port-au-Prince, operations of dredging are usually realized on “Bois-de-Chêne” river or channel. The Channel sediments are exposed to wastewater from the Urban Community of Port-au-Prince. After the operations of dredging, the polluted sediments, including solid wastes, are deposited on a site very close to the bay of Port-au-Prince. This discharge allows to a transfer of pollutants to ocean. Indeed, these sediments mixed with solid and liquid wastes can contribute to an eutrophication hazard for the marine ecosystem of Port-au-Prince. Terrestrial ecohydrology approaches, based on phytotechnology, are mostly used to reduce and manage hazards or risks linked to contaminated sediments. In order to eliminate pollutants containing in the polluted dredged sediments from drainage channel of Port-au-Prince. Zea mays L. has been used, as ecohydrological agent, in this study to reduce the toxicity of sediments chemical compounds on natural ecosystems. The analysis of pore water of the sediments taken at three (3) points along the channel has allowed showing the Toxicity of the experimental material in nitrogen and phosphorus compounds. The nitrogen (nitrates, ammonia) and phosphorus (phosphate) pollutants were determined according to the french standards. The phosphate values, in particular, are higher of more than 7 times than the maximum limit (2 mg/L). The latter consisted in trapping the mineral compounds by the vegetable material. The measured physical parameters reveal that corn samples raised in the sediments had a better growth than those in the pilot ground from Damien farm. The analysis of collected plants samples shows the potentialities of Zea mays L in the phytoremediation of nitrogen and phosphorus.]]> Sun, 18 Jan 2015 20:30:37 GMT /slideshow/21-06-evens-emmanuel-gsa-mach-20th/43644625 EvensEmmanuel@slideshare.net(EvensEmmanuel) Efficiency of Zea mays L. in the retention of nutrients in the interstitial water EvensEmmanuel Many chemical substances rejected into the natural environment accumulate in the vases or muds constituting the sediments. Nowadays, in order to reduce human health and ecological risks, also to prevent the blockage of drainage channels and manage flood risks, operations of dredging are accomplished everywhere across the world. In European countries dredged sediments are used sometimes as manure to fertilizer agricultural soils. In Port-au-Prince, operations of dredging are usually realized on “Bois-de-Chêne” river or channel. The Channel sediments are exposed to wastewater from the Urban Community of Port-au-Prince. After the operations of dredging, the polluted sediments, including solid wastes, are deposited on a site very close to the bay of Port-au-Prince. This discharge allows to a transfer of pollutants to ocean. Indeed, these sediments mixed with solid and liquid wastes can contribute to an eutrophication hazard for the marine ecosystem of Port-au-Prince. Terrestrial ecohydrology approaches, based on phytotechnology, are mostly used to reduce and manage hazards or risks linked to contaminated sediments. In order to eliminate pollutants containing in the polluted dredged sediments from drainage channel of Port-au-Prince. Zea mays L. has been used, as ecohydrological agent, in this study to reduce the toxicity of sediments chemical compounds on natural ecosystems. The analysis of pore water of the sediments taken at three (3) points along the channel has allowed showing the Toxicity of the experimental material in nitrogen and phosphorus compounds. The nitrogen (nitrates, ammonia) and phosphorus (phosphate) pollutants were determined according to the french standards. The phosphate values, in particular, are higher of more than 7 times than the maximum limit (2 mg/L). The latter consisted in trapping the mineral compounds by the vegetable material. The measured physical parameters reveal that corn samples raised in the sediments had a better growth than those in the pilot ground from Damien farm. The analysis of collected plants samples shows the potentialities of Zea mays L in the phytoremediation of nitrogen and phosphorus. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/21-06evensemmanuelgsamach20th-150118203037-conversion-gate02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br> Many chemical substances rejected into the natural environment accumulate in the vases or muds constituting the sediments. Nowadays, in order to reduce human health and ecological risks, also to prevent the blockage of drainage channels and manage flood risks, operations of dredging are accomplished everywhere across the world. In European countries dredged sediments are used sometimes as manure to fertilizer agricultural soils. In Port-au-Prince, operations of dredging are usually realized on “Bois-de-Chêne” river or channel. The Channel sediments are exposed to wastewater from the Urban Community of Port-au-Prince. After the operations of dredging, the polluted sediments, including solid wastes, are deposited on a site very close to the bay of Port-au-Prince. This discharge allows to a transfer of pollutants to ocean. Indeed, these sediments mixed with solid and liquid wastes can contribute to an eutrophication hazard for the marine ecosystem of Port-au-Prince. Terrestrial ecohydrology approaches, based on phytotechnology, are mostly used to reduce and manage hazards or risks linked to contaminated sediments. In order to eliminate pollutants containing in the polluted dredged sediments from drainage channel of Port-au-Prince. Zea mays L. has been used, as ecohydrological agent, in this study to reduce the toxicity of sediments chemical compounds on natural ecosystems. The analysis of pore water of the sediments taken at three (3) points along the channel has allowed showing the Toxicity of the experimental material in nitrogen and phosphorus compounds. The nitrogen (nitrates, ammonia) and phosphorus (phosphate) pollutants were determined according to the french standards. The phosphate values, in particular, are higher of more than 7 times than the maximum limit (2 mg/L). The latter consisted in trapping the mineral compounds by the vegetable material. The measured physical parameters reveal that corn samples raised in the sediments had a better growth than those in the pilot ground from Damien farm. The analysis of collected plants samples shows the potentialities of Zea mays L in the phytoremediation of nitrogen and phosphorus.
Efficiency of Zea mays L. in the retention of nutrients in the interstitial water from Evens Emmanuel
]]> 396 1 https://cdn.slidesharecdn.com/ss_thumbnails/21-06evensemmanuelgsamach20th-150118203037-conversion-gate02-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 Le collège doctoral d'haïti in haïti des initiatives https://fr.slideshare.net/slideshow/le-collge-doctoral-dhati-in-hati-des-initiatives/43617221 lecollgedoctoraldhatiinhatidesinitiatives-150117115453-conversion-gate02
]]>
]]> Sat, 17 Jan 2015 11:54:53 GMT https://fr.slideshare.net/slideshow/le-collge-doctoral-dhati-in-hati-des-initiatives/43617221 EvensEmmanuel@slideshare.net(EvensEmmanuel) Le collège doctoral d'haïti in haïti des initiatives EvensEmmanuel <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/lecollgedoctoraldhatiinhatidesinitiatives-150117115453-conversion-gate02-thumbnail.jpg?width=120&amp;height=120&amp;fit=bounds" /><br>
from Evens Emmanuel
]]> 467 58 https://cdn.slidesharecdn.com/ss_thumbnails/lecollgedoctoraldhatiinhatidesinitiatives-150117115453-conversion-gate02-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post http://activitystrea.ms/schema/1.0/posted 0 https://cdn.slidesharecdn.com/profile-photo-EvensEmmanuel-48x48.jpg?cb=1681061493 http://evensemmanuel.blogspot.com/ https://cdn.slidesharecdn.com/ss_thumbnails/lels-e06192013modedecompatibilit-150118205713-conversion-gate02-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/laboratoire-santenvironnement/43644941 Laboratoire Santé-Envi... https://cdn.slidesharecdn.com/ss_thumbnails/21-0562ndannualmeetingofthesoutheasternvaeemodedecompatibilit-150118204806-conversion-gate01-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/21-05-62nd-annual-meeting-of-the-southeastern-vaee-mode-de-compatibilit/43644847 Risk factor Cryptospor... https://cdn.slidesharecdn.com/ss_thumbnails/21-06evensemmanuelgsamach20th-150118203037-conversion-gate02-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/21-06-evens-emmanuel-gsa-mach-20th/43644625 Efficiency of Zea mays...