Fliti Abd El-karim, Ouiza Ait Chabane , Samah Belmahi Loubna

كلية علوم الطبيعة والحياة-جامعة عبد الحميد بن باديس مستغانم · الجزائر

This study examined the effect of methanol extracts of Thymus vulgaris harvested in the wilaya of Setif in northeastern Algeria on the two specific germs of yoghurt, namely Streptococcus thermophilus and Lactobacillus bulgaricus. The main bioactive compounds Of Thym were extracted by maceration of a sample of the crushed plant material in an aqueous methanol solution.After evaporation in vacuo of the methanol, the extracts obtained were diluted to 20%, 40%, 60%, 80 and 100%. The measurements and controls were carried out in triple tests and concerned the direct contact method, the diffusion method on disks, the CMI and the CMB.The study showed that increasing concentrations of bioactive extracts of thymus vulgaris resulted in strong bacterial activity against Streptococcus thermophilus and Lactobacillus bulgaricus; With inhibition diameters varying from 5.33 to 12.67 mm and from 5.67 to 13.33 mm, with inhibition levels ranging from 26.67 to 63.33% and 32.69 to 76.92% is a microbial growth which varies from 131.67.104 UFC / ml to 128.104 UFC / ml respectively.The minimal inhibitory concentration and the minimum bactericidal concentration are obtained with the thyme extract prepared at 60% for streptococcus thermophilus; the minimal inhibitory concentration for Lactobacillus bulgaricus is obtained with the extract prepared at 80% and the minimum bactericidal concentration observed at 60%. Thus the CMB / CMI ratio is equal to 1 and 0.75 respectively.The methanol extract of Thymus vulgaris of Setif appears to exert a bactericidal effect on the two specific germs of yoghurt Streptococcus thermophilus and Lactobacillus bulgaricus

عبد الله صالح حسن, وجيه يونس محمد, ياسر قاسم حسني

كلية العلوم-جامعة الأنبار · العراق

Oxidative stress is an imbalance between oxidants and antioxidants,Which play an important role in initiation and progression of vitiligo.Vitiligo is an acquired, chronic depigmenting disorder of skin. The diseaseresults from the selective loss of melanocytes. The aim of study is toevaluate effect of oxidative stress, heat and light on treatment of patientswith vitiligo in AL-Anbar governorate.The study has been included 80 blood samples of vitiligo patients (30males and 50 females ) and 40 blood samples from healthy individuals (8males and 32 females ), the date of sampling persists from July 2018 up toJanuary 2019. Many biochemical parameters are performed for all patientsand healthy individuals to know the pathogenesis of Vitiligo in addition toquestioner list which has been filled for each patient .Their ages are divided into different groups: group (A) rangesbetween (10-20) years, group (B) ranges between (21-40) years, group (C)ranges between (41-70) years. Family history of vitiligo was positive in apercentage of (30%) of the patients. The duration of disease ranged between1 month to 20 years . History of seasonal variation of disease was positivein( 60%) patients. Out of these (10%) noticed exacerbation of disease inwinter while (50%) in summer season. Bad emotional state exacerbates ofabout (70%) of vitiligo patients, while the other (30%) does not affect.This study shows that there is no relationship between the occupation,accommodation, most common diet, most common drinks and spiritual sideand vitiligo.Hemoglobin Concentration and Packed cells Volume determination ofpatient's group were significantly lower than those of control group with ( P≤ 0.05 ).The results obtained from this study showed a significant increase inMalondialdehyde (MDA) concentration with ( P ≤ 0.05 ) in vitiligo patientsat comparison with control group and showed that there are no significantdifferences with ( P ≥ 0.05 ) in the concentrations of total bilirubin in vitiligopatients at comparison with control group and showed significant increasein the concentrations of uric acid with (P ≤ 0.05) in vitiligo patients atcomparison with control and showed significantly increase in glutathionconcentration with ( P ≤ 0.05 ) in vitiligo patients at comparison withcontrol group.The statistical analysis for the determination some of vitaminsshowed that there are no significant differences in the concentrations ofvitamin E and C with ( P ≥ 0.05 ) in vitiligo patients at comparison withcontrol group.The statistical analysis for the determination some of trace elementsshowed a significant increase in the concentrations of Zn and Cu with (P≤ 0.05) in vitiligo patients at comparison with control group.This study shows that there is no correlation relationship betweenoxidants MDA and antioxidants ( vitamin C, vitamin E, Zn ). But it shows anegative correlation between MDA and Glutathione (r=-0.447) at significant(p≤0.01) and a positive correlation between MDA and Cu (r=0.409 ) atsignificant (p≤0.01).Lipids profile is determined and the statistical analysis results showthat serum cholesterol, triglycerides, high density lipoprotein cholesterol(HDL-cholesterol), low density lipoprotein cholesterol (LDL-cholesterol)and very low density lipoprotein cholesterol (VLDL-cholesterol) were nosignificant differences than those in control group with ( P ≥ 0.05 ).The results of thyroid hormones determination were in the patient'sgroup T3 and T4 were no significant differences than those in control group( P ≥ 0.05 ).while TSH was significantly higher than those in control group (P ≤ 0.05 ).This study evaluated the effect of Narrow-band ultraviolet B (NB UVB) on the 20 patients ( 12 women and 8 men ) with vitiligo. The responseof 80-90%was given grade excellent and response of 70-80% was givengrade good and response of 60-70% was given grade moderate, whileresponse of 50-60% was given grade mild and response of 40-50% wasgiven grade poor.

Munira Abdullah Saleh Al-Rumhi, Huda Al-Noumani, Sulaiman El Sabie

كلية التمريض-جامعة السلطان قابوس · عمان

Door-to-balloon (DTB) time is a quality indicator for timely perfusionduring the primary percutaneous intervention (pPCI). American Heart Association/American College of Cardiology (AHA/ACC) guidelines recommended a DTB time of ≤90 minutes. Shorter DTB time is preferable to reduce the negative clinical outcomes.Purpose: The purpose of this study was two fold: (a) to determine the variables thatinfluence the DTB time among patients with STEMI in Oman, and (b) to assess therelationship between delayed DTB time and patients' health-related outcomes includinglength of stay, crude in-hospital mortality rate, hospital stay cost, and left ventricularejection fraction.Method: A cross-sectional retrospective study was conducted. All patients who presentedto the Emergency Department at two referral hospitals in Oman and underwent pPCIduring two years' periods (January 2018- December 2019) were included. Data werecollected using electronic patients medical records. Descriptive statistics including mean,standard deviation, percentages, and frequencies were used to describe the DTB time.Logistic regression was used to identify factors influencing delayed DTB time. Chi square and independent sample t-tests were used to examine the association betweendelayed DTB time and length of stay, crude in-hospital mortality rate, hospital stay cost,and left ventricular ejection fraction.Results: A total of 426 patients were included. More than half of patients (57.7%) werebetween 50 and 69 years old. Of the total patients, 81.7% were male. The mean DTB timewas 151.56 minutes. A total of 357(83.8%) patients had a DTB time of more than 90minutes while only 69 (16.2%) patients had DTB time less than 90 minutes DTB. Theresult of bivariate logistic regression showed that patients' presenting symptoms andpresenting time were the only significant factors associated with delayed DTB (p =0.005). Patients presented with atypical symptoms were three times more likely to havea delayed DTB time compared with patients presenting with typical symptoms (OR =3.003, 95% CI: 1.409 -6.400, p = 0.004). In addition, patients presented with irregularworking time were two times more likely to have a delayed DTB time compared withpatients who presented to the Emergency Department at a regular time (OR = 2.291, 95%CI: 1.284– 4.087, p = 0.005). The crude in-hospital mortality rate was 9.86%. Findingsshowed there is no significant relationship between DTB time and clinical outcomesincluding crude in-hospital mortality rate, length of stay, hospital stay cost and leftventricular ejection fraction.Conclusion: The study findings suggest that nurses need adequate training to recognizepatients with atypical versus typical symptoms to shorten DTB time. Moreover, toachieve recommended DTB time, maintaining adequate staffing and followingrecommended guidelines during both regular and irregular hours is highly recommended.These findings can be used as a baseline for future studies and can inform strategies forimproving the quality of treatment for patients with STEMI.

سارة بنميلود, نهى السناح

كلية الطب والصيدلة -جامعة سيدي محمد بن عبدالله - فاس · المغرب

Nadia Djabrouhou, M.h. Guermouche

كلية الكيمياء-جامعة العلوم والتكنولوجيا هواري بومدين - الجزائر · الجزائر

Dans ce travail, nous présentons une nouvelle méthode HPLC indicatrice de stabilité validée pour la détermination de . La matière active et le produit fini sont soumis à différentes conditions de dégradation. L’ETI est fortement dégradée sous l’effet de la température montrant un produit de dégradation (DPA) ; l’effet du peroxyde engendre la formation de quatre produits (DPA, DPB, DPC et DPD). Le stress basique conduit à la formation de DPA, DPB et DPC ; l’acide et la photolyse produisent DPA et DPB. Les structures des DPs sont établies par LC-MS/TOF. Les structures proposées des quatre DPs sont confirmées par RMN-1H, 13C. La méthode HPLC a été validée. Elle a été appliquée avec succès à l’analyse de l’ETI dans les gélules.

حسين عبيد, على عبد اله رمال

كلية الحقوق والعلوم السياسية والإدارية-الجامعة اللبنانية · لبنان

Boutra Ismail, Hamzaoui.I, Serier Abdallah Yasser

كلية العلوم والتكنولوجيا-جامعة الجيلالي بونعامة - خميس مليانة · الجزائر

Dans notre société moderne l’énergie est devenue un élément fondamental à cause de nos différentes exigences en plusieurs termes domestiques et industriels. Ce qui nous incite à réfléchir toujours à des nouvelles techniques de production de cette énergie. Nous nous intéresserons à l’énergie tirée du vent au moyen de dispositif aérogénérateur; il s’agit de l’énergie éolienne. En fait, les éoliennes dont le fonctionnement est basé sur un générateur d’induction doublement alimenté sont largement reconnues dans l’industrie comme une des configurations d’éoliennes les plus prometteuses. Le travail proposé dans le cadre de ce projet consiste en la Modélisation, commande et la simulation d’une chaine éolienne. Mots clés : MADA- éolien-Commande vectorielle (FOC), Commande direct de puissance (DPC).

Adnan Fawaz, Darina Saliba Abichedid

مدرسة الآداب والعلوم-الجامعة اللبنانية الأميركية · لبنان

صوفية نبيلة تكارلي, يوسف دبوب

كلية العلوم الاقتصادية وعلوم التيسيير-جامعة الجزائر 1 - بن يوسف بن خدة · الجزائر

Kenza Lremizi, Celia Bennour, Ferkane

جامعة عبد الرحمان ميرة - بجاية · الجزائر

Le syndrome coronaire aigu est une pathologie cardiovasculaire fréquente qui constitue un vrai problème de santé public .C’est une urgence qui met en jeu le pronostic vital, du fais du risque élevé des complications qu’elle engendre. Sa prise en charge est une course contre la montre et les trois premières heures constituent les « golden hours ».L’objectif principal de notre étude est d’évaluer la prise en charge du syndrome coronaire aigu avec sus décalage du segment ST ainsi que le profil épidémiologique, les délais et les modalités de traitement. C’est une étude prospective descriptive qui a recensé soixante malades admis au service de cardiologie du CHU khlil Amrane à Béjaia pour infarctus du myocarde (IDM) à la phase aigüe durant une période de 6 mois. Le SCA ST+ représente 12%des hospitalisations totales, avec un âge moyen de 58 ans; un sex-ratioHomme/Femme de 7.La tranche d’âge la plus touchée chez nos patients est cellecomprise entre 50 - 70 ans.Les facteurs de risque cardiovasculaires sont dominés par le tabagisme (43, 33%),suivi par le diabète (38 ,33%) ; l’hypertension artérielle (28,33%) et la dyslipidémie (28,33%). 36,67% de nos patients ont présenté deux facteurs de risque alors que 10% ontprésenté trois ou plus. La douleur thoracique typique est le principal motif de consultationSeulement 61,67% des patients ont été thrombolysés dont 16.22% à la première heure, 18.92% à la deuxième heure, et 27.02% à la troisième heure Le reste des malades non thrombolysés constitue 38,33% et cela est dû soit au retard de consultation chez environ 34 ,7% des malades, retard diagnostic chez 21,73% ou bien au retard de prise en charge chez 43 ,48% . 38, 33% de nos malades ont présenté une complication ou plus avec seulement un patient est décédé.Tous les patients ont bénéficié d’un traitement médical alors que l’angioplastie n’a été réalisé chez aucun d’entre eux ce qui rend toujours la prise en charge incomplète.Afin de diminuer sa survenue une prévention primaire qui sert à limiter les facteurs de risque cardiovasculaire est nécessaire ainsi que la sensibilisation des patients et la formation d’un personnel qualifié améliore la prise en charge des coronariens dans les délais optimaux.