04.Participation of Professors

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Address of the intervention: The human right to understand expert science: the standard of modernity of the law?
(University of eloued جامعة الوادي, 2018-09-12) Soltani, Amina
Two decades later, participatory democracy emerged in public law, posing the need for the law to be written by demanding the administration of truth, and the words of the law itself can no longer be tolerated in today's society except through a genuine discourse. The law becomes the element that increases the performance of an evidentiary group to produce facts. Inference here with the science where the law is united by science or mingling through the resort to objectivity, which is the fruit of scientific experience to bring the legal system to the system of interpretation of honest and legitimate, the law to provide models and systems in the form of a set of rules and answers adapted to this extent or that with the development Science . For example, the use of DNA in the criminal justice process gradually evolved to less than 20 years, the least controversial scientific material in criminal justice to prove and understand the physical evidence of the crime scene. The use of lab evidence has grown in scientific innovations and practical applications. The analysis of the PC and mobile phone segments has become a physical guide to the suspect's cybercrime, giving the prestige and prestige of science and technology to understand And proof of physical evidence
Analysis of the variance water distribution of pivot sprinkler irrigation on the productivity of the potato plant in El Oued region of Algeria
(Edirne. Turkiye, 2023-09-18) Messaoudi Mohammed; Hacene Laouedj; Ghemam Amara Djilani
This study aimed to determine the extent different of distribution of the axial sprinkler water as a method of irrigation, and the effect of this on the quantity and quality of potato plant production in different areas along the axis sprinkler in the sandy soil of Eloued region in Algeria. For this, we relied on a sample of data consisting of 150 observations distributed over 10 areas according to the length of the axis. statistically we used oneway-analysis of variance after ensuring its statistical validity. Accordingly, we concluded that despite the significant statistical significance of the difference in the distribution of irrigation water( and the time taken and flow strength) along the axis, the difference in the amount of water supplied in the tenth area (tail region) reached a maximum of 57,58 % relative to the reference area ( the fourth region), which recorded at 42,42 % of what the reference area obtained, and at least 21,60 % was obtained in the eighth area relative to the reference region, which obtained 78,40 % of what the reference area obtained. However, according to the tests of our study, this had no significant effect on the difference, quantity and quality of production along the radius at the 5 % level. In light of these results, we concluded that the productivity of the irrigation water component fundamentally differs between the areas along the axis, which means that this irrigation method is not economical in sandy soils.
Antioxidant and antimicrobial activity of flavonoid extracts of Arnebia Decumbens (Vent) growing in southeast Algeria
(Sousse- Tunisie, 2023-07-10) Tamma noureddine
Approaches to Composition Literacy: Bridging the Gap between Theory and Practice
(University of eloued جامعة الوادي, 2017-11-07) Naoua, Mohammed
This paper attempts to trace the chronological development of the theories and approaches, which have been generating the literature relevant to foreign language writing since the second half of the 20th century. The intent is to examine the extent to which these theories have affected the process of composition in classroom practices. The study starts with the Controlled-composition approach highlighting its focus on coherent arrangement of word to structure grammatical correct sentences. Then, it introduces the orientations of the Current-traditional rhetoric emphasizing that the composing process should focus on developing (a) given language function(s). With the emerge of the Process approach attempting to reinforce learners' expressive abilities, the composition practices turned towards creative writing. However, the increase of interest in writing for academic purposes the composing practices seems now to lay much more emphasis on text genres. This paper attempts to highlight the role of composition theories in fostering higher education writing practices.
Artificial bee colony optimization for economic dispatch with valve point effect
(Higher Education Press, 2014-12) Labbi, Yacine; Ben Attous, Djilani; Mahdad, Belkacem
In recent years, various heuristic optimization methods have been proposed to solve economic dispatch (ED) problem in power systems. This paper presents the well-known power system ED problem solution considering valve-point effect by a new optimization algorithm called artificial bee colony (ABC). The proposed approach has been applied to various test systems with incremental fuel cost function, taking into account the valve-point effects. The results show that the proposed approach is efficient and robust when compared with other optimization algorithms reported in literature.
Bio-activity of essential oils from Cymbopogon schoenanthus L
(University of Eloued جامعة الوادي, 2021-10-24) KADRI, Mounira; BELBOUT, Amel; SALHI, Nasrine; YAHIA, Abedelouahab
الفعالية البيولوجية للزيت الأساسي للماد Cymbopogon schoenanthus L تهدف هذه الدراسة إلى التحقق من الفعالية المضادة للأكسدة و الفعالية ضد بكتيرية للزيت الأساسي لنبات اللماد النامي في الصحراء الجزائرية تم استخلاص الزيت الأساسي للجزء الخضري للماد عن طريق التقطير المائي (كليفنجر) لمدة 3 ساعات. أما الفعالية البكتيرية للزيت الأساسي للماد فاستعملنا طريقة الانتشار عبر الأقراص في وسط الجيلوز . السلالات البكتيرية المختبرة هي .Klebsiella pneumoniae ATCC 700603, Listeria innocua Clip74915, Pseudomonas aeruginosa ATCC 27853, Escherichia coli ATCC 25922, Salmonella enterica ssp. Arizonae CIP 81, Staphylococcus aureus ATCC 25923, Bacillus cereus, Enterococcus faecalis الفعالية المضادة للأكسدة تم اختبارها عن طريق قدرة الزيت على كبح الجذر الحر للDPPH. نبات اللماد غني بالزيت الأساسي و الذي قدر مردوده بـ 6.06±0.54 % كما قدرت قيمة IC50 في الفعالة المضادة للأكسدة ب28.82±11.72 mg/ml لم يكن للزيت الأاسي تأثير واضح على السلالت البكتيرية Pseudomonas aeruginosa ATCC 27853, Escherichia coli ATCC 25922, Salmonella enterica ssp. Arizonae CIP 81, Bacillus cereus, Enterococcus faecalis،لكنه اضهر فعالية ضد Klebsiella pneumoniae, Listeria innocua, Staphylococcus aureus،و أعلى قطر تثبيط رسم عند السلالة Klebsiella pneumoniae,بـ 36.67±1.53mm. Bio-activity of essential oils from Cymbopogon schoenanthus L. This study aimed at investigating the Antioxidant and antibacterial activity of essential oils from Cymbopogon schoenanthus L. (spreng) was collected of south Algeria. The essential oils were extracted by hydrodistillation of fresh aerial part of C. schoenanthus a (Clevenger-type apparatus) for 3 h. The antimicrobial activity of C. schoenanthus essential oil was evaluated using Agar well-diffusion test (Lopes-Lutz et al., 2008). The microorganisms tested were Klebsiella pneumoniae ATCC 700603, Listeria innocua Clip74915, Pseudomonas aeruginosa ATCC 27853, Escherichia coli ATCC 25922, Salmonella enterica ssp. Arizonae CIP 81, Staphylococcus aureus ATCC 25923, Bacillus cereus, Enterococcus faecalis. The antioxidant and free radical scavenging activity were determined by spectrophotome, Based on DPPH hydroxyl radical scavenging activity. The Cymbopogon schoenanthus was rich in essential oil, yielding (6,06±0,54%). Antioxidant activity essential oil has been done by using DPPH essay. IC50 values observed for DPPH essay were 28,82±11,72 mg/ml. The essential oil was not effective against Pseudomonas aeruginosa ATCC 27853, Escherichia coli ATCC 25922, Salmonella enterica ssp. Arizonae CIP 81, Bacillus cereus, Enterococcus faecalis. The essential oil of C. schoenanthus has an antibacterial effect against, Klebsiella pneumoniae, Listeria innocua, Staphylococcus aureus, the Highest inhibition was noted against Klebsiella pneumoniae (36,67±1,53mm).
Biological properties and Acute Toxicity Study of Copper oxide nanoparticles prepared by aqueous leaves extract of Portulaca oleracea
(A & V Publications, 2020-06-03) Atoussi, Ouidad; Chetehouna, Sara; Derouiche, Samir
The aim of this study is to use the purslan (Portulacae oleracea L) leaves aqueous extract in order to prepare copper nanoparticles and to explore antioxidant and anti-inflammatory activity of aqueous extract of P.oleracea L and CuNPs. The nanoparticles were characterized from structural and morphological point of view by using analytical techniques such as: UV-Vis spectroscopy, Fourier Transform Infrared Spectroscopy (FTIR), and Scanning Electron Microscopy (SEM). Antioxidant activity of purslane and CuNPs was studied done FRAP assay also the anti-inflammatory and hemolysis essay were studies. The acute toxicity test was applied in Wistar albino rats. Obtain results show that the SEM analysis revealed that the particle size was found to be ranging under 46 nm. On the other hand, the copper nanoparticles and purslan possessed the reducing capacity when IC50 value was 68, 316 μg/ml and 79, 675 μg/ml respectively, the anti-inflammatory ability while IC50 value was 77, 503 μg/ml and 60, 727 μg/ml respectively. In this study, the toxicity test showed no mortality or behavioral change up to 20 mg/kg of albino Wistar rats CuNPs. We concluded that Portulaca oleracea L has potential properties as biocatalyst or natural stabilizers for CuNPs synthesis. Each CuNPs as P.oleracea L leaves extract were have a reducing and anti-inflammatory capacity which can be protect the cells against the degenerative effects of Reactive Oxygen Species (ROS).
Building the Intercultural Competence : Readiness and Methods
(University of eloued جامعة الوادي, 2018-11-13) GHEDEIR BRAHIM Mohammed; Nasba, Asma
The present research aims at measuring the readiness of EFL teachers as well as investigating the different approaches adopted by them in order to help in building the intercultural competence among EFL students to be able to cope with globalization imposed by the fastpaced social change. Being a global citizen having the flexibility to adequately react in multicultural environments is the new perspective of the English language teaching polices in Algeria.To measure the EFL teachers' readiness to include intercultural components besides the language profeciency and in order to investigate the different methods adopted by them to help in building students' intercultural competence, a structured interview was conducted with a number of 06 English language teachers at the department of English in the Univerity of El- Oued. Results reveal that EFL teachers are a.\ryare of the students' increasing demand to master not only English but the cultural dimension also associated with situations that require English as a medium of communication such as involving in interviews related to job opportunities, studying abraod and participating in AIESEC programmes devoted to the youth where they have to pass interviews with high-ups from different social and cultural backgrounds. For this reason, teachers tend to integrate new language teaching practices in the classroom based on an inevitable combination of language skills and intercultural competency by focusing on values, attitudes and knowledge about other people's cultures and otherness studies. Teachers also add that their task is getting easier with the technological advances since the internet revolutionized people's lifestyles. In other words they argue that students come to class with prior worldviews and holistic viewpoints on the other because of the widespread use of the internet. Teachers also add that they resort to various models of intercultural competence to create learning tasks that help students to gain intercultural competence. Results led to the construction of pedagogical implications that highlight the importance of encouraging the teaching methods that consider the cultural dimension at the heart of the foreign language teachinÿlearning process because language and culture are inextricably linked.
CFD Study of Methane-Hydrogen Behavior in a Non-Premixed Combustion Chamber
(University of eloued جامعة الوادي, 2017-11-26) Attia, M. E. H.; Boukhari, A.; Bouras, F.; Driss, Z.
In this paper, the numerical results of the study of a turbulent flame of methane-hydrogen/air generated by a cylindrical burner are presented. The numerical simulations are carried out using the CFD code "FLUENT" and "Gambit" for the meshing process. The finite volume method was used to solve the Navier-Stokes equations governing the flow. The coupling of the LES/PDF models is used to model the turbulence/chemistry interaction in the system's transport equations. The results of the calculations are expressed and analyzed in terms of axial velocity, temperature and mass fraction of carbon monoxide CO. The results of the numerical calculations are compared and validated against experimental data. In addition, the same parameters considered above are used in the study of the combustion behavior of CH4 /H2 fuels. The obtained results confirm the fact of considering hydrogen as a clean nonpolluting fuel compared to methane, since it has no carbon monoxide emissions in combustion products. Besides this fact, the hydrogen gas velocity in the flame is significantly higher by comparing it to the methane gas velocity
Chemical composition and antioxidant activity of Apis mellifera bee pollen from northwest Algeria
(Journal of Fundamental and Applied Sciences, 2012-12-31) Rebiai, Abdelkrim; Lanez, Touhami
The aim of this study was to assess the nutritional composition and antioxidant activity of bee pollen produced in the North western region of Algeria. The content of total phenolic compounds, flavonoids, and antioxidant activity using the molybdate ion reduction method were determined. The mean contents of phenolic compounds and total flavonoids were 30.46 ± 8.22 mg of GAE.g–1 pollen and 8.92 ± 5.5 mg of RE.g–1 pollen, respectively. High antioxidant activities were found for the molybdate ion reduction method, with values that ranged from 71.95 to 101.5 μg of GAE.g –1 pollen. The bee pollen of Boufarik showed high antioxidant activity probably due to the high content of phenolic compounds present in pollen.
CHEMICAL COMPOSITION AND ANTIOXIDANT ACTIVITY OF THE ESSENTIAL OIL OF RUTA GRAVEOLENS GROWING WILD IN SOUTH EAST ALGERIA
(Sousse- Tunisie, 2023-07-10) ABADI ABDERREZZAK
Comparative Analysis of Multiple Linear Regression and Generalized Regression Neural Network for Water Temperature Estimation of Fontaine Des Gazelles Reservoir Dam-Biskra, Algeria
(The International Society for Engineers and Researchers (ISER). Istanbul. Turquie, 2024-02-06) MEZIANI, ASSIA
Our research centers on estimating the water temperature of Fontaine de Gazelles Reservoir Dam by analyzing air temperature, relative humidity, solar radiation, atmospheric pressure, wind speed, and precipitation. These variables collectively impact water temperature, reflecting the thermal environment, water vapor content, solar energy, air density, wind-induced processes, and precipitation cooling. We employ Multiple Linear Regression (MLR) and Generalized Regression Neural Networks (GRNN) models for accurate estimates. MLR captures linear dependencies among climate variables, while GRNN model complex nonlinear relationships. Trained on historical data and real-time measurements, both MLR and GRNN demonstrate strong capabilities. MLR achieves high Nash-Sutcliffe Efficiency (0.991 to 0.997) and low Root Mean Squared Error (0.406 to 0.625), while GRNN achieves similar values. Both models consistently exceed a coefficient of determination R2 equal 0.99, indicating a robust correlation, and display low Mean Absolute Error (0.236 to 0.391), affirming their accuracy. This attests to MLR and GRNN's reliability in estimating water temperature for the Fontaine de Gazelles Reservoir Dam. الملخص (باللغة العربية) تركز بحثنا على تقدير درجة حرارة الماء في سد خزان فونتين دي غازيل المتواجد ببسكرة من خلال تحليل درجة حرارة الهواء والرطوبة النسبية والإشعاع الشمسي والضغط الجوي وسرعة الرياح وهطول الأمطار. تؤثر هذه المتغيرات الجوية بشكل اساسي على درجة حرارة الماء، مما يعكس على البيئة ومياه السد، والطاقة الشمسية، وكثافة الهواء، والعمليات التي تحدثها الرياح، والأمطار. في هذا العمل استخدمنا نموذجين الاول يعتمد على الانحدار الخطي والثاني على الشبكات العصبية للانحدار المعمم. للحصول على تقديرات دقيقة لدرجة حرارة مياه السد. النتائج كانت كتالي يلتقط نموذج الانحدار الخطي التبعيات الخطية بين متغيرات المناخ، في حين تقوم الشبكات العصبية بنمذجة العلاقات غير الخطية المعقدة. ومن خلال تدريبهما على البيانات الجوية والقياسات في الوقت الفعلي، أظهر كل من نموذج الانحدار الخطي والشبكات العصبية تقدرات ممتازة. لدرجات حرارة المياه للسد حيث يحقق نموذج الانحدار الخطي كفاءة عالية (حسب قيم ناش للنموذج يتراوح من 0.991 إلى 0.997) والخطأ التربيعي لمتوسط الجذر المنخفض (0.406 إلى 0.625)، بينما تحقق الشبكات العصبية قيمًا مماثلة. يتجاوز كلا النموذجين باستمرار معامل الارتباط الذي يساوي 0.99، مما يشير إلى وجود ارتباط قوي للمتغيرات، ويعرض متوسط خطأ مطلق منخفض (0.236 إلى 0.391)، مما يؤكد دقتهما. وهذا ياكدعلى فعالية ودقة النموذجين في تقدير درجة حرارة المياه لسد فونتين دي غازيل المتواجد ببسكرة.
Comparative study of hemispherical solar distillers iron-fins
(Elsevier, 2021-04-10) Attia, Mohammed El Hadi; Kabeel, AE; Abdelgaied, Mohamed; El-Maghlany, Wael M; Bellila, Abdelkader
The ratio between surface area to volume is higher in spherical distillers than traditional single slope distillers. To utilize this advantage, the study measures hemispherical distillers performance. Iron fins have been employed at different lengths and spacing in absorber plate to increase absorption area and transmit heat from hot basin plate to saline water. Three configurations have been tested under same operating conditions. First, the conventional hemispherical distiller without fins representing the reference case (CHSS). Second, the modified hemispherical distiller with fins set at 5 cm spacing (MHSS-IF5). Third, the modified hemispherical distiller with fins set at 7 cm (MHSS-IF7). Fins diameter is constant at 1.2 cm with tested length of 3, 2 and 1 cm starting from the basin absorber plate. Basin salt water is fixed at 3 cm (maximum fin length) during experiments. Results prove that fin utilization is important in performance enhancement. However, fin length effect on performance depends on spacing due to shading effect in distillers. Consequently, the fins utilization improves distiller productivity up to 56.73% with best configuration of MHSS-IF7 with 2 cm fin length and 7 cm spacing. The fins utilization is not costly in the hemispherical distiller with positive enhancement contribution leads to minimum cost per liter of produced water.
Comparative Study of Honey Collected from Different Flora of Algeria
(Journal of Fundamental and Applied Sciences, 2014) Rebiai, A; Lanez, T
The aim of the present study was to evaluate the physical and chemical properties of five Algerian unifloral types of honey. Several physical parameters of honey, such as pH, moisture content, electrical conductivity, total dissolved solids, color intensity and total sugar content, were measured. The mean pH, moisture content, EC and water insoluble solids of Algerian honey were 4.41± 0.58, 15.3 ± 1.5%, 0.324± 0.116 mS/cm and 0.141± 0.065%, respectively. The mean color was 81 ± 72 mm Pfund. The majority of honey samples test results (moisture content, electric conductivity and acidity) levels were within the acceptable range of world honey standards.
A comparative study on structural and optical properties of ZnO and Al-doped ZnO thin films obtained by ultrasonic spray method using different solvents
(Urban & Fischer, 2014-07-01) Gahtar, Abdelouahab; Rahal, Achour; Benhaoua, Boubaker; Benramache, Said
Abstract Transparent conducting ZnO and Al doped ZnO thin films were deposited on glass substrate by ultrasonic spray method. The thin films with concentration of 0.1 M were deposited at 350 °C with 2 min of deposition time. The effects of ethanol and methanol solution before and after doping on the structural, optical and electrical properties were examined. The DRX analyses indicated that ZnO films have nanocrystalline nature and hexagonal wurtzite structure with (1 0 0) and (0 0 2) preferential orientation corresponding to ZnO films resulting from methanol and ethanol solution, respectively. The crystallinity of the thin films improved with methanol solution after doping to (0 0 2) oriented. All films exhibit an average optical transparency about 90%, in the visible range. The band gaps values of ZnO thin films are increased after doping from 3.10 to 3.26 eV and 3.27 to 3.30 eV upon Al doping obtained by ethanol and methanol solution, respectively. The electrical conductivity increase from 7.5 to 15.2 (Ω cm)−1 of undoped to Al doped ZnO thin films prepared by using ethanol solution. However, for the methanol solution; the electrical conductivity of the film is stabilized after doping.
Comparison Study Between SVM and PWM Inverter in Sliding Mode Control of Active and Reactive Power Control of a DFIG for Variable Speed Wind Energy
(İlhami ÇOLAK, 2012-09-18) Bekakra, Youcef; Ben Attous, Djilani
t- In this paper, we present a comparative study between space vector modulation (SVM) and pulse width modulation (PWM) inverter in sliding mode control (SMC) of active and reactive power control of a doubly fed induction generator (DFIG) for variable speed wind energy. The feasibility and effectiveness of the two methods are demonstrated by simulation results. The obtained results showed that, the proposed SMC with SVM inverter have stator and rotor current with low harmonic distortion and low active and reactive powers ripples than PWM inverter.
Composition chimique et évaluation des activités biologiques de la partie aérienne d,une plante endémique Myrtus nivellei
(University of eloued جامعة الوادي, 2017-10-05) Ramdane, Farah; Mahfoud, Hadj Mahammed; Ould Hadj Mohamed, Didi
Les substances naturelles issues des végétaux ont des intérêts multiples mis à profit dans l'industrie: en alimentation, en cosmétologie et en dermopharmacie. Parmi ces composés on retrouve dans une grande mesure les métabolites secondaires qui se sont surtout illustrés en thérapeutique. Selon lalittérature, les composés d'origine naturelle présentent I'avantage d'une très grande diversité de structures chimiques et ils possèdent aussi un très large éventail d'activités biologiques, dans le but d'avoir des nouvelles ressources bioactive; nous avons réalisé une étude ethnobotanique dans le Hoggar afin de connaitre l'utilisation de cette plante dans la médecine populaire, ensuite Les constituants des huiles essentielles des parties aériennes de cette plante extraites par hydrodistillation ont été analysés par GC-MS. Cette analyse fait apparaître 24 composés représentant 98,87yo de I'huile total. Le 1,8 cineole (53,44%) est le composé majoritaire de cette huile suivi par 12,2, 6,7-tetramethyl-10- oxatricyclo 14.3.0.1(1,7)]decan-5-one (ll,73Yo), trans ocimene (7,54yo),linalyl propirionate (6,8t%) et lavandulyl acetate (5,24%). Cette huile a montré une activité importante contre le radical DPPH. L'activité antibactérienne de cette huile a été déterminée par la méthode de diffusion sur des souches Gram positif et d'autres Gram négatif, cette huile n'a pas montré une efficacité que sur la souche testée Listeria monocytogenes. Egalement l'huile de cette espèce a inhibé modérément la charge parasitaire testée particulièrement la souche Leishmania major
COMPOSITION OF ESSENTIAL OILS AND ANTIOXIDANT CAPACITY USING SPECTROPHOTOMETRICAL AND ELECTROCHEMICAL ASSAYS OF T§TIO LABIACEAE SPECIES FROM ALGERIA
(2018-05-12) Benchikha, Naima; Ben Amor, Med Larbi; Rebiai, Karim
The Conceptualization of Language Analysis from the Perspective of Sociolinguistics: The Shift from Langue to Parole
(University of eloued جامعة الوادي, 2016-11-14) NAOUA, Mohammed
Since the second half of the twentieth century, the conceptualization of language analysis has been revisited several times. Modern Structuralism, for instance, focused on the study of langue rather than parole. Their justification is that the former is a self-contained system or social product of the faculty of speech deposited in the brains of individuals as a result of numerous experiences of listening to other persons. However, parole is the manifestation of that faculty in speech. On its part, Mentalistic linguistics though viewing that individuals are predisposed with language, almost maintained the same dichotomy leading to competence and performance. Since all language irregularities occur in performance, this trend emphasizes that language study should focus on competence. However, since the early seventies the pendulum of language analysis has fallen in favor of parole. Criticizing the failure of structural and mentalistic linguistics to account for the social, physical and temporal situations that language activity is taking place in, the father of sociolinguistics, Dell Hymes (1972b) proposed a model of communicative competence comprising four sectors: possibility (langue/competence), feasibility (psycholinguistic aspect), appropriateness (context) and the frequency of occurrences of speech acts. This paper attempts to trace the conceptualization of language analysis from the perspective of sociolinguistics.
Contribution â l'inventaire et l'utilisation des plantes médicinales spontanées dans les zones semi-aride (e cas de la région d'Om El Bouaghi, Est-Algérien)
(University of Eloued جامعة الوادي, 2014-06-11) Chouikh, Atef; Selmane, Mehdi
تعد النباتات الطبية ذات أهمية طبية واقتصادية بالغة، إذ أغلب الأدوية الصيدلانية ذات أصل نباتي، ومالها من الدور الكبير فقد زاد الاهتمام بها، كما زادت الأبحاث والدراسات عليها لهدف التعرف على المزيد من فوائدها. ولهذا فقد تطرقنا في بحثنا هذا إلى دراسة إحصائية للأنواع النباتية البرية الطبية وإستعمالاتها في منطقة أم البواقي والتي تنتمي إلى مناطق شبه جافة بالشرق الجزائري، من خلال جمع الأنواع النباتية المختلفة وتصنيفها، ثم التعرف على الطبية منها سواء الشائعة أو محلية الاستعمال، أحصينا حوالي 119 نوع نباتي من بينها 29 نوع نباتي طبي موزع على 21 فصيلة نباتية واسعة الإنتشار في المنطقة وذات إستعمالات خارجية وأخرى داخلية. كما لاحظنا من بين هذه الأنواع التواجد المعتبر للعائلة الشفوية أنواع نباتية طبية لعلى أهمها نبات الخياطة المستعمل في وقف النزيف وضم الجروح ، وكذلك عائلة لسان الحمل والعائلة المركبة والزنبقية بنوعين نباتين طبين ، كما تراوحت إستعمالات النباتات الطبية المحصاة ضد السعال وآلآم المعدة والبطن وفقر الدم وترميم الجروح . Les Plantes médicinales ayant une importance médcale et économique énorme parce que la majorité des produits pharmaceutiques d'origine végétale. D'autre part, les plantes médicinales avec son role signficatif, ils ont augmenté leur iùportance scientifique ou on trouve plusieurs recherches et études faites pour connaitre ses avantages et intérets. Dans notre recherche, on afait une étude statistique des types des plantes sauvages madicinales et leurs applications dans la région d"Om Bouaghi qui font partie des régions semi-ardes du Est-algerien. à travers de la collection des espéces végétales échantillonnées, on classé et identifié les espèces d'intérets médicales soit commun ou locale. Dans cette étude, on a compté 119 espèces dont 29 espèces sont médicinales réparties sur 21 familles répandus dans la région et avec d'utilisations internes et externes. A partir cet échantillonnage, on a noté la présence de la famille des Lamiaceae avec quatre espèces végétales médicinales comme: El Kaita ( Teucrium polium ) est l'espèce le plus important dans cette famille parce qu'ils ont utilisé pour arreter le saignement et l'inclus blessures . Ainsi que, on a noté la présence de la famille des Plantaginaceae, Asteraceae et Liliaccés avec deux espèces végétales médicinales. Les plantes médicinales recensées ayant plusieurs usages, on note comme exemple: contre la toux, les douleurs d'estomac, les douleurs abdominales, l'anémie, et lacicatrisation des blessures.

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