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307 results for “Algeria”
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Research ArticleOpen accessEvery word in the titleImpact of Mercury Mine Activities on Water Resources at Azzaba-North-East of AlgeriaFadila Alligui, Abdelhak BoutalebProblem statement: Mercury mineralization occurred in Azzaba (north-eastern Algeria) as a part of mercurial Numidian belt, consists of numerous of Hg deposits (Koudiat Sma, Mrasma, Guenicha, Fendek, Ismail and Ras Elma). These deposits are hosted in a variety of lithologies including sandstone, limestone, breccias and conglomerate. The ores occur as cinnabar deposits in Ypresian-Lutetian formations. Although the quantity and type … …American Journal of Environmental Sciences, Vol. 6, Issue 4 · 31 Aug 2010 · 7,493 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAlteration of the Aquifer Water in Hyperarid Climate, by Wastewater: Cases of Groundwater from Ouargla (Northern Sahara, Algeria)Djidel Mohamed, Bousnoubra-Kherici Houria, Kherici Nacer, Nezli Imed-EddineThe present study is registered, on the area of Ouargla (the Sahara septentrional, Algeria) reports of the aquifer contamination by the anarchistic urban rejections. By its geomorphology (basin), its hyperarid climate and the presence of chotts, the area is subjected to an important degree of vulnerability, encouraged by the discharges of wastewater (domestic and irrigation). These factors expose aquifer's water … …American Journal of Environmental Sciences, Vol. 4, Issue 6 · 31 Dec 2008 · 7,108 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePresence and Origin of Fluoride in the Complex Terminal Water of Ouargla Basin (Northern Sahara of Algeria)Imed Eddine Nezli, Samia Achour, Mohamed Djidel, Saïd AttalahProblem statement: The underground waters in the oriental regions of the Algerian Sahara, present real chemical quality problems. Their content in fluorides always exceeds the limit of the recommended levels. That is 0.8 mg L-1, according to the maximum temperature in the region. Combined to a high salinity, it affects the health of the population living around the region. The … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 7,671 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleContribution to the Study of the Origin of Salinity in Alluvial Aquifer System in the Ain chabro-Hammamet (North-East ALGERIA)K. Seghir, N. KhériciTebessa is located in the Algerian North East. It is characterized by a semi-arid continental climate with an average interannual precipitation of less than 400 mm. It belongs to the Eastern Saharian Atlas field along the Tunisian borders. It is drained by a certain number of the wouady of which Chabro and Bouakous are the most important. The surface area … …American Journal of Environmental Sciences, Vol. 4, Issue 6 · 31 Dec 2008 · 6,608 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleProteins polymorphism of some populations of Lygeum spartum L. in AlgeriaAbderrezak Djabeur, Meriem Kaid-Harche, Douadi KhelifiLygeum spartum L. represent a natural barrier in the Algerian high plateaus against the advances of sand and turning into a desert. This species has two levels of ploïdy (diploïd cytotype 2n = 16 and polyploidy cytotype 2n = 40). Protein profile of several populations of this species have inter and intra specific variability. The polymorphic bands observed in the … …American Journal of Agricultural and Biological Sciences, Vol. 3, Issue 1 · 31 Mar 2008 · 8,093 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleIn Silico Cholinesterase and Monoamine Oxidase Inhibitory Activities of Perillaldehyde and D-Limonene, Main Compounds of Essential Oil of Algerian Ammodaucus leucotrichusNesrine Sadaoui-Smadhi, Souad Khemili-Talbi, Wadood Abdul et al.In a continuation of our previous work for the exploration of novel enzyme inhibitors, molecular modeling was used to inspect the binding mode of perillaldehyde and D-limonene, the major compounds of essential oil of Algerian Ammodaucus leucotrichus into the active site pocket of cholinesterase (AChE and BuChE) and Monoamine Oxidase (MAO). The molecular docking was carried out using Molecular Operating … …Current Research in Bioinformatics, Vol. 8, Issue 1 · 28 Feb 2020 · 7,313 accessesView PDFCite
CorrigendumOpen accessEvery word in the titleCorrigendum: Prevalence and Histopathologic Analyses of Mammary Tumors in Female Dogs in the Northeast of AlgeriaZahra Gabli, Leila Beddar, Amir Agabou et al.Correction to: OnLine Journal of Biological Sciences http://doi.org/10.3844/ojbsci.2017.166.177, published online 26 September 2017; updated 10 April 2018 The original version on this Article did not include Dr. Amir Agabou as a Co-Author. In addition, the Author's Contribution section has been updated to the following. Zahra Gabli: This work was carried out in collaboration between all authors. The first author assisted … …OnLine Journal of Biological Sciences, Vol. 18, Issue 1 · 11 Apr 2018 · 7,995 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleStructure, Ultrastructure of the Anther, Pollen Microsporogenesis and Morphology of Pollen Grains of Two Populations of Lygeum spartum L. in AlgeriaKatia Abdeddaim-Boughanmi, Meriem Kaid-HarcheProblem statement: The Lygeum spartum L. represented by a single species occupies several regions of the Mediterranean basin. This plant plays an important ecological role in the fight against desertification and economic development in the manufacture of paper pulp. Approach: However, the cytogenetic studies in mitosis in this species revealed the existence of two ploidy levels: 2n = 40 among … …American Journal of Agricultural and Biological Sciences, Vol. 4, Issue 3 · 30 Sep 2009 · 8,514 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAssociation of High-Affinity FcεRI-β intron 2 for IgE Gene Polymorphism and Atopic Diseases in an Algerian PopulationDahbia Ines Dahmani, Ikhlass Haj Salem, Jamila Chakir et al.Atopy is characterized by the production of a high level of IgE in response to common allergens. We examined the RsaI-in2 polymorphism of the FcεRI-β gene and its association with atopic asthma and comorbidity. The study population included 77 atopic asthmatics and 77 non-atopic, non-allergic and non-asthmatic controls. Atopic asthma was confirmed by the skin prick test and by IgE … …OnLine Journal of Biological Sciences, Vol. 17, Issue 4 · 1 Nov 2017 · 7,444 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleISOLATION AND CHARACTERIZATION OF HELICOBACTER PYLORI STRAINS FROM GASTRIC BIOPSIES OF ALGERIAN PATIENTSGuetarni Hassina, Bensoltane AhmedThe objective of this study is to isolate and characterize strains Helicobacetr pylori from gastric biopsies by upper gastrointestinal endoscopy. After a rapid urease test, two Helicobacter pylori strains isolated from four patients on blood agar. After extraction of DNA from these strains from homogenates of gastric biopsies, quantification by real-time PCR was performed to determine Helicobacter pylori on the … …OnLine Journal of Biological Sciences, Vol. 13, Issue 2 · 19 Apr 2013 · 7,264 accessesView PDFCite