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Messaouda</title> <meta name="description" content="Search results for: Meraghni Messaouda"> <meta name="keywords" content="Meraghni Messaouda"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none 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action="https://publications.waset.org/abstracts/search"> <div id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="Meraghni Messaouda"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 8</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: Meraghni Messaouda</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">8</span> Study of the Antimicrobial Activity of the Extract of the Eucalyptus camaldulensis stemming from the Algerian Northeast</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Meksem%20Nabila">Meksem Nabila</a>, <a href="https://publications.waset.org/abstracts/search?q=Bordjiba%20Ouahiba"> Bordjiba Ouahiba</a>, <a href="https://publications.waset.org/abstracts/search?q=Meraghni%20Messaouda"> Meraghni Messaouda</a>, <a href="https://publications.waset.org/abstracts/search?q=Meksem%20Amara%20Leila"> Meksem Amara Leila</a>, <a href="https://publications.waset.org/abstracts/search?q=Djebar%20Mohhamed%20Reda"> Djebar Mohhamed Reda</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The problems of protection of the cultures are being more and more important that they interest great number of farmers and scientists because of the excessive use of the organic phytosanitary products of synthesis that causes fatal damages on the environment. To reduce the inconveniences produced by these pesticides, the use of "biopesticides" originated from plants could be an alternative. The aim of this work is the valuation of a botanical species: Eucalyptus camaldulensis from Northeastern Algeria which extracts are supposed to have an antimicrobial activity, similar to pesticides. The extraction of secondary metabolites from the leaves of E. camaldulensis was realized using methanol and water, and measurements of total polyphenols were made by spectrometric method. Determination of the antimicrobial activity of the extracts at issue was realized in vitro on phyto-pathogenic fungal and bacterial stumps. Tests of comparison were included in the essays by using the chemical pesticidal products of synthesis. The obtained results show that the plant contains polyphenols with an efficiency mattering of the order of 22 %. These polyphenols have a strong fungicidal and bactericidal pesticidal activity against various microbial stumps and the values of the zones of inhibition are more important compared with that obtained in the presence of the chemicals of synthesis (fungicide). <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=eucalyptus%20camaldulensis" title="eucalyptus camaldulensis">eucalyptus camaldulensis</a>, <a href="https://publications.waset.org/abstracts/search?q=biopesticide" title=" biopesticide"> biopesticide</a>, <a href="https://publications.waset.org/abstracts/search?q=polyphenols" title=" polyphenols"> polyphenols</a>, <a href="https://publications.waset.org/abstracts/search?q=antimicrobial%20activity" title=" antimicrobial activity"> antimicrobial activity</a> </p> <a href="https://publications.waset.org/abstracts/29478/study-of-the-antimicrobial-activity-of-the-extract-of-the-eucalyptus-camaldulensis-stemming-from-the-algerian-northeast" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/29478.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">432</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">7</span> Antibacterial Activity of Northern Algerian Honey</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Messaouda%20Belaid">Messaouda Belaid</a>, <a href="https://publications.waset.org/abstracts/search?q=Salima%20Kebbouche-Gana"> Salima Kebbouche-Gana</a>, <a href="https://publications.waset.org/abstracts/search?q=Djamila%20Benaziza"> Djamila Benaziza</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Our study focuses on determining the antibacterial activity of some honeys from northern Algeria. To test this activity, the agar well diffusion methods was employed. The bacterial strains tested were Staphylococcus aureus, Bacillus subtilis, Streptococcus faecalis, Klebsiella pneumoniae, Escherichia coli, and Pseudomonas aeroginosae. The results showed that all the microbes tested were inhibited by all honey used in this study but Those bacteria that appear to be more sensitive to all honey tested are Staphylococcus aureus and Pseudomonas aeroginosae. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=honey" title="honey">honey</a>, <a href="https://publications.waset.org/abstracts/search?q=antibacterial%20activity" title=" antibacterial activity"> antibacterial activity</a>, <a href="https://publications.waset.org/abstracts/search?q=Northern%20Algeria" title=" Northern Algeria"> Northern Algeria</a>, <a href="https://publications.waset.org/abstracts/search?q=Staphylococcus%20aureus" title=" Staphylococcus aureus"> Staphylococcus aureus</a> </p> <a href="https://publications.waset.org/abstracts/13175/antibacterial-activity-of-northern-algerian-honey" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13175.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">394</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">6</span> Microbial Contamination of Haemolymph of Honeybee (Apis mellifera intermissa) Parasitized by Varroa Destructor</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Messaouda%20Belaid">Messaouda Belaid</a>, <a href="https://publications.waset.org/abstracts/search?q=Salima%20Kebbouche-Gana"> Salima Kebbouche-Gana </a> </p> <p class="card-text"><strong>Abstract:</strong></p> The negative effect of the Varroa bee colony is very important. They cause morphological and physiological changes, causing a decrease in performance of individuals and long-term death of the colony. Indirectly, they weaken the bees become much more sensitive to the different pathogenic organisms naturally present in the colony. This work aims to research secondary infections of microbial origin occurred in the worker bee nurse due to parasitism by Varroa destructor. The feeding behaviour of Varroa may causes damaging host integument. The results show that the microbial contamination enable to be transmitted into honeybee heamocoel are Bacillus sp, Pseudomonas sp, Enterobacter, Aspergillus. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=honeybee" title="honeybee">honeybee</a>, <a href="https://publications.waset.org/abstracts/search?q=Apis%20mellifera%20intermissa" title=" Apis mellifera intermissa"> Apis mellifera intermissa</a>, <a href="https://publications.waset.org/abstracts/search?q=microbial%20contamination" title=" microbial contamination"> microbial contamination</a>, <a href="https://publications.waset.org/abstracts/search?q=Varroa%20destructor" title=" Varroa destructor "> Varroa destructor </a> </p> <a href="https://publications.waset.org/abstracts/13183/microbial-contamination-of-haemolymph-of-honeybee-apis-mellifera-intermissa-parasitized-by-varroa-destructor" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/13183.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">401</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">5</span> Characterization of an Ecological Mortar Lightweight With Polystyrene</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Aidoud%20Assia">Aidoud Assia</a>, <a href="https://publications.waset.org/abstracts/search?q=Bencheikh%20Messaouda"> Bencheikh Messaouda</a>, <a href="https://publications.waset.org/abstracts/search?q=Boukour%20Salima"> Boukour Salima</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Polystyrene is often seen in the ocean and on Algerian beaches, mainly as food containers. It's one of the top 10 most common items found there. This happens because it's light and easily carried away from its original source, like packaging or transport, into the environment. Unfortunately, it's not recycled much because it's not very profitable to do so. Hence, turning this waste into a resource can turn challenges into opportunities for a territory's economic and environmental development, which is the focus of this study. the goal is to analyze the physical and mechanical properties of a new type of mortar made from dune sand mixed with recycled polystyrene. it also aim to assess its potential for use in various construction applications. The mixtures were prepared by replacing portions of dune sand with polystyrene waste at varying volumes (10%, 20%, and 30%), while keeping the amount of cement constant. The results indicate a noticeable impact on both the physical and mechanical properties because of incorporating polystyrene waste. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=polystyr%C3%A8ne" title="polystyr猫ne">polystyr猫ne</a>, <a href="https://publications.waset.org/abstracts/search?q=eco-mortier" title=" eco-mortier"> eco-mortier</a>, <a href="https://publications.waset.org/abstracts/search?q=sable%20de%20dune" title=" sable de dune"> sable de dune</a>, <a href="https://publications.waset.org/abstracts/search?q=r%C3%A9sistance" title=" r茅sistance"> r茅sistance</a> </p> <a href="https://publications.waset.org/abstracts/185871/characterization-of-an-ecological-mortar-lightweight-with-polystyrene" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185871.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">53</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">4</span> An Analysis of Language Borrowing among Algerian University Students Using Online Facebook Conversations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Messaouda%20Annab">Messaouda Annab</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The rapid development of technology has led to an important context in which different languages and structures are used in the same conversations. This paper investigates the practice of language borrowing within social media platform, namely, Facebook among Algerian Vernacular Arabic (AVA) students. In other words, this study will explore how Algerian students have incorporated lexical English borrowing in their online conversations. This paper will examine the relationships between language, culture and identity among a multilingual group. The main objective is to determine the cultural and linguistic functions that borrowing fulfills in social media and to explain the possible factors underlying English borrowing. The nature of the study entails the use of an online research method that includes ten online Facebook conversations in the form of private messages collected from Bachelor and Masters Algerian students recruited from the English department at the University of Oum El-Bouaghi. The analysis of data revealed that social media platform provided the users with opportunities to shift from one language to another. This practice was noticed in students’ online conversations. English borrowing was the most relevant language performance in accordance with Arabic which is the mother tongue of the chosen sample. The analysis has assumed that participants are skilled in more than one language. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=borrowing" title="borrowing">borrowing</a>, <a href="https://publications.waset.org/abstracts/search?q=language%20performance" title=" language performance"> language performance</a>, <a href="https://publications.waset.org/abstracts/search?q=linguistic%20background" title=" linguistic background"> linguistic background</a>, <a href="https://publications.waset.org/abstracts/search?q=social%20media" title=" social media"> social media</a> </p> <a href="https://publications.waset.org/abstracts/105501/an-analysis-of-language-borrowing-among-algerian-university-students-using-online-facebook-conversations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/105501.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">158</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">3</span> The Influence of Incorporating Coffee Grounds on Enhancing the Engineering Properties of Expansive Soils: Experimental Approach and Optimization</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bencheikh%20Messaouda">Bencheikh Messaouda</a>, <a href="https://publications.waset.org/abstracts/search?q=Aidoud%20Assia"> Aidoud Assia</a>, <a href="https://publications.waset.org/abstracts/search?q=Salima%20Boukour"> Salima Boukour</a>, <a href="https://publications.waset.org/abstracts/search?q=Benamara%20Fatima%20Zohra"> Benamara Fatima Zohra</a>, <a href="https://publications.waset.org/abstracts/search?q=Boukhatem%20Ghania"> Boukhatem Ghania</a>, <a href="https://publications.waset.org/abstracts/search?q=Zegueur%20Chaouki%20Salah%20Eddine"> Zegueur Chaouki Salah Eddine</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The utilization of waste materials in civil engineering has gained widespread attention in recent years due to their adverse effects on the environment. One such waste material is coffee grounds, a black residue generated daily across the country after coffee brewing. Instead of disposing of it, there is a growing interest in repurposing it for various agricultural and industrial applications. Utilizing coffee grounds in geotechnical engineering, such as in road embankments, presents an opportunity for its valorization. The study aims to contribute to the valorization of coffee grounds by enhancing the physical and mechanical properties of clayey soils through their incorporation at varying weight percentages (3%, 6%, 9%, 12%) as partial replacements in these soils. This not only addresses the issue of coffee ground waste but also makes a tangible contribution to sustainable development. The findings demonstrate that incorporating coffee grounds generally has positive effects on the physical and mechanical properties of clayey soil. However, the extent of these effects depends on factors such as the quantity of coffee grounds added, the particle size of the grounds, and the characteristics of the soil. Additionally, coffee grounds can improve the compression and tensile strength of clayey soil, resulting in increased stability and reduced susceptibility to deformation under external forces. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=clay%20soil" title="clay soil">clay soil</a>, <a href="https://publications.waset.org/abstracts/search?q=coffee%20grounds" title=" coffee grounds"> coffee grounds</a>, <a href="https://publications.waset.org/abstracts/search?q=optimizing" title=" optimizing"> optimizing</a>, <a href="https://publications.waset.org/abstracts/search?q=improvement" title=" improvement"> improvement</a>, <a href="https://publications.waset.org/abstracts/search?q=valorization" title=" valorization"> valorization</a>, <a href="https://publications.waset.org/abstracts/search?q=waste" title=" waste"> waste</a> </p> <a href="https://publications.waset.org/abstracts/185913/the-influence-of-incorporating-coffee-grounds-on-enhancing-the-engineering-properties-of-expansive-soils-experimental-approach-and-optimization" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/185913.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">45</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">2</span> Evaluation of Antioxidants in Medicinal plant Limoniastrum guyonianum</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Assia%20Belfar">Assia Belfar</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Hadjadj"> Mohamed Hadjadj</a>, <a href="https://publications.waset.org/abstracts/search?q=Messaouda%20Dakmouche"> Messaouda Dakmouche</a>, <a href="https://publications.waset.org/abstracts/search?q=Zineb%20Ghiaba"> Zineb Ghiaba</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: This study aims to phytochemical screening; Extracting the active compounds and estimate the effectiveness of antioxidant in Medicinal plants desert Limoniastrum guyonianum (Ze茂ta) from South Algeria. Methods: Total phenolic content and total flavonoid content using Folin-Ciocalteu and aluminum chloride colorimetric methods, respectively. The total antioxidant capacity was estimated by the following methods: DPPH (1.1-diphenyl-2-picrylhydrazyl radical) and reducing power assay. Results: Phytochemical screening of the plant part reveals the presence of phenols, saponins, flavonoids and tannins. While alkaloids and Terpenoids were absent. The acetonic extract of L. guyonianum was extracted successively with ethyl acetate and butanol. Extraction of yield varied widely in the L. guyonianum ranging from (0.9425 %to 11.131%). The total phenolic content ranged from 53.33 mg GAE/g DW to 672.79 mg GAE/g DW. The total flavonoid concentrations varied from 5.45 to 21.71 mg/100g. IC50 values ranged from 0.02 卤 0.0004 to 0.13 卤 0.002 mg/ml. All extracts showed very good activity of ferric reducing power, the higher power was in butanol fraction (23.91 mM) more effective than BHA, BHT and VC. Conclusions: Demonstrated this study that the acetonic extract of L. guyonianum contain a considerable quantity of phenolic compounds and possess a good antioxidant activity. Can be used as an easily accessible source of Natural Antioxidants and as a possible food supplement and in the pharmaceutical industry. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=limoniastrum%20guyonianum" title="limoniastrum guyonianum">limoniastrum guyonianum</a>, <a href="https://publications.waset.org/abstracts/search?q=phenolics%20compounds" title=" phenolics compounds"> phenolics compounds</a>, <a href="https://publications.waset.org/abstracts/search?q=flavonoid%20compound" title=" flavonoid compound"> flavonoid compound</a>, <a href="https://publications.waset.org/abstracts/search?q=antioxidant%20activity" title=" antioxidant activity"> antioxidant activity</a> </p> <a href="https://publications.waset.org/abstracts/38407/evaluation-of-antioxidants-in-medicinal-plant-limoniastrum-guyonianum" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/38407.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">346</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">1</span> Extracting the Antioxidant Compounds of Medicinal Plant Limoniastrum guyonianum</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Assia%20Belfar">Assia Belfar</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Hadjadj"> Mohamed Hadjadj</a>, <a href="https://publications.waset.org/abstracts/search?q=Messaouda%20Dakmouche"> Messaouda Dakmouche</a>, <a href="https://publications.waset.org/abstracts/search?q=Zineb%20Ghiaba"> Zineb Ghiaba</a>, <a href="https://publications.waset.org/abstracts/search?q=Mahdi%20Belguidoum"> Mahdi Belguidoum</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: This study aims to phytochemical screening; Extracting the active compounds and estimate the effectiveness of antioxidant in Medicinal plants desert Limoniastrum guyonianum (Ze茂ta) from South Algeria. Methods: Total phenolic content and total flavonoid content using Folin-Ciocalteu and aluminum chloride colorimetric methods, respectively. The total antioxidant capacity was estimated by the following methods: DPPH (1.1-diphenyl-2-picrylhydrazyl radical) and reducing power assay. Results: Phytochemical screening of the plant part reveals the presence of phenols, saponins, flavonoids and tannins. While alkaloids and Terpenoids were absent. The Methanolic extract of L. guyonianum was extracted successively with ethyl acetate and butanol. Extraction of yield varied widely in the L. guyonianum ranging from (1.315 % to 4.218%). butanol fraction had the highest yield. The higher content of phenols was recorded in butanol fraction (311.81 卤 0.02mg GAE/g DW), the higher content of flavonoids was found in butanol fraction (9.58 卤 0.33mg QE/g DW). IC50 of inhibition of radical DPPH in ethyl acetate fraction was (0.05 卤 0.01碌g/ml) Equal effectiveness with BHT, All extracts showed good activity of ferric reducing power, the higher power was in butanol fraction (16.16 卤 0.05mM). Conclusions: Demonstrated this study that the Methanolic extract of L. guyonianum contain a considerable quantity of phenolic compounds and possess a good antioxidant activity. It can be used as an easily accessible source of Natural Antioxidants and as a possible food supplement and in pharmaceutical industry. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=flavonoid%20compound" title="flavonoid compound">flavonoid compound</a>, <a href="https://publications.waset.org/abstracts/search?q=l.%20guyonianum" title=" l. guyonianum"> l. guyonianum</a>, <a href="https://publications.waset.org/abstracts/search?q=medicinal%20plants" title=" medicinal plants"> medicinal plants</a>, <a href="https://publications.waset.org/abstracts/search?q=phenolic%20compounds" title=" phenolic compounds"> phenolic compounds</a>, <a href="https://publications.waset.org/abstracts/search?q=phytochemical%20screening" title=" phytochemical screening"> phytochemical screening</a> </p> <a href="https://publications.waset.org/abstracts/45913/extracting-the-antioxidant-compounds-of-medicinal-plant-limoniastrum-guyonianum" class="btn 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