In order to characterize the forest fires in the province of Sidi Bel Abbes （North West of Algeria） and depending on a statistical data analysis of a 17-year period （1996-2012）, our works are oriented toward a stu...In order to characterize the forest fires in the province of Sidi Bel Abbes （North West of Algeria） and depending on a statistical data analysis of a 17-year period （1996-2012）, our works are oriented toward a study of the area covered by forest fires in the 53 constituent municipalities of the region. To do this, we depended on the archives of the forest fires balance sheets in forest conservation in the wilaya of Sidi Bel Abbes. The results show that the region lost an annual average 29,929 ha of its total forest area for a maximum of 11,817.5 ha recorded in 2012. On the other hand, the use of the fire severity index ＂FSI＂ by town and its cartography in which we used the map of administrative division of the study area as support, has divided the region into six classes according to the risk of fire, where the municipalities belonging to the forest of Telagh whose land is rugged represent the risk of fire is greater. Indeed, this situation category the study area among the most exposed wilaya and the most affected by this problem at the national level and require new approaches to forest management for its conservation. These are paramount in reducing the risk of fires based on appropriate management plans to be established for each forest conservation area.展开更多
Ruta genus is a member of the family Rutaceae that has been cultivated widely in many regions of the world because of its medicinal properties. In Tessala Mountain （Sidi Bel Abbes Country, North-Western of Algeria）,...Ruta genus is a member of the family Rutaceae that has been cultivated widely in many regions of the world because of its medicinal properties. In Tessala Mountain （Sidi Bel Abbes Country, North-Western of Algeria）, the Ruta genus commonly known by ＂fidjel＂ is represented by two species： Ruta Chalepensis L. and Ruta Montana （L.） L. frequently used by local population in a traditional treatment. The water-distilled essential oils from this species yielded 7.23% and 6.104% for Ruta chalepensis L. and Ruta montana （L.） L. respectively. The essential oil of Ruta montana （L.） L. showed a strong antibacterial activity against all bacterial strains tested （Staphylococcus aureus ATCC 25923, Pseudomonas aeruginosa ATCC 27853, Mycobacterium kansasii ATCC ! 2478 and Mycobacterium vaccae ATCC 1548314） compared to Ruta chalepensis L. oils which have a moderate effect only on Staphylococcus aureus ATCC 25923 and Pseudomonas aeruginosa ATCC 27853. Therefor, the antibacterial properties of the essential oils of Ruta Chalepensis L. and Ruta Montana （L.） L. are now well established through this study and therefore could justify their future uses in the treatment of nosocomial infections.展开更多
Water comes from various different sources, such as lakes, rivers, streams, springs and boreholes. Depending on the quality of its source, water will almost certainly have to be treated to make it safe to drink. All w...Water comes from various different sources, such as lakes, rivers, streams, springs and boreholes. Depending on the quality of its source, water will almost certainly have to be treated to make it safe to drink. All water supplies for human consumption must be well stored, free from micro-organisms, parasites and any substances that endanger public health if found in sufficient numbers or concentrations, in the same time. In our continued effort for a better result in our study of qualitative aspects, by physicochemical and bacteriological analysis, the authors focus in two crucial questions： a） is the water quality of Sidi-bel-Abbes good or bad ,and well stored？ b） is the people of Sidi-bel-Abbes are aware of the importance of water and knowledgeable about how to use this vital？ This study is the first to use data from I real work based upon a developed method and a good investigation to know exactly if water of Sidi-Bel-Abbes is safely treated, well stored and consumed in resemble way. In first, the authors plotted the method in analysing the qualitative aspect of water using developed material for a precise result starting by the distribution connection （condition and management） and the verification of water tank storage and finishing by analyzing the all the aspect of water （physicochemical and bacteriological analysis）. In second, the authors focus on the way that people of Sidi Bel Abbes used and consumption water by introducing a targeted method （questionnaires） which help us a lot to know precisely the way, time and the real quantity of water consumed daily. In final step of our study of qualitative aspects, by physico-chemical and bacteriological, and environmental analyses, investigation processed by PCA （principal component analysis） of the drinking water supplied to Sidi Bel Abbes city （Algeria north-west） concluded by an encouraging result, that despite the various constraints faced by the departments concerned, they ensure the supply of safe drinking water in households almost daily.展开更多
文摘In order to characterize the forest fires in the province of Sidi Bel Abbes （North West of Algeria） and depending on a statistical data analysis of a 17-year period （1996-2012）, our works are oriented toward a study of the area covered by forest fires in the 53 constituent municipalities of the region. To do this, we depended on the archives of the forest fires balance sheets in forest conservation in the wilaya of Sidi Bel Abbes. The results show that the region lost an annual average 29,929 ha of its total forest area for a maximum of 11,817.5 ha recorded in 2012. On the other hand, the use of the fire severity index ＂FSI＂ by town and its cartography in which we used the map of administrative division of the study area as support, has divided the region into six classes according to the risk of fire, where the municipalities belonging to the forest of Telagh whose land is rugged represent the risk of fire is greater. Indeed, this situation category the study area among the most exposed wilaya and the most affected by this problem at the national level and require new approaches to forest management for its conservation. These are paramount in reducing the risk of fires based on appropriate management plans to be established for each forest conservation area.
文摘Ruta genus is a member of the family Rutaceae that has been cultivated widely in many regions of the world because of its medicinal properties. In Tessala Mountain （Sidi Bel Abbes Country, North-Western of Algeria）, the Ruta genus commonly known by ＂fidjel＂ is represented by two species： Ruta Chalepensis L. and Ruta Montana （L.） L. frequently used by local population in a traditional treatment. The water-distilled essential oils from this species yielded 7.23% and 6.104% for Ruta chalepensis L. and Ruta montana （L.） L. respectively. The essential oil of Ruta montana （L.） L. showed a strong antibacterial activity against all bacterial strains tested （Staphylococcus aureus ATCC 25923, Pseudomonas aeruginosa ATCC 27853, Mycobacterium kansasii ATCC ! 2478 and Mycobacterium vaccae ATCC 1548314） compared to Ruta chalepensis L. oils which have a moderate effect only on Staphylococcus aureus ATCC 25923 and Pseudomonas aeruginosa ATCC 27853. Therefor, the antibacterial properties of the essential oils of Ruta Chalepensis L. and Ruta Montana （L.） L. are now well established through this study and therefore could justify their future uses in the treatment of nosocomial infections.
文摘Water comes from various different sources, such as lakes, rivers, streams, springs and boreholes. Depending on the quality of its source, water will almost certainly have to be treated to make it safe to drink. All water supplies for human consumption must be well stored, free from micro-organisms, parasites and any substances that endanger public health if found in sufficient numbers or concentrations, in the same time. In our continued effort for a better result in our study of qualitative aspects, by physicochemical and bacteriological analysis, the authors focus in two crucial questions： a） is the water quality of Sidi-bel-Abbes good or bad ,and well stored？ b） is the people of Sidi-bel-Abbes are aware of the importance of water and knowledgeable about how to use this vital？ This study is the first to use data from I real work based upon a developed method and a good investigation to know exactly if water of Sidi-Bel-Abbes is safely treated, well stored and consumed in resemble way. In first, the authors plotted the method in analysing the qualitative aspect of water using developed material for a precise result starting by the distribution connection （condition and management） and the verification of water tank storage and finishing by analyzing the all the aspect of water （physicochemical and bacteriological analysis）. In second, the authors focus on the way that people of Sidi Bel Abbes used and consumption water by introducing a targeted method （questionnaires） which help us a lot to know precisely the way, time and the real quantity of water consumed daily. In final step of our study of qualitative aspects, by physico-chemical and bacteriological, and environmental analyses, investigation processed by PCA （principal component analysis） of the drinking water supplied to Sidi Bel Abbes city （Algeria north-west） concluded by an encouraging result, that despite the various constraints faced by the departments concerned, they ensure the supply of safe drinking water in households almost daily.
