83 research outputs found
Identification of phenolic compounds and evaluation of antioxidant, antimicrobial and cytotoxic effects of the endemic Achillea multifida
No full textThe aim of this study was to evaluate for the first time total phenolic content, antioxidant, antimicrobial and cytotoxic effects of heptane, chloroform and methanol extracts from Achillea multifida (DC.) Boiss. (Compositae) aerial parts followed by identification of phenolic compounds in the methanol extract, which showed the highest total amount of phenolics, antioxidant and antibacterial activity. The phenolic compounds in methanol extract were identified for the first time by ESI-Q-TOF LC/MS. The phenolic compounds were identified as: chlorogenic acid; quercetin hexoside; luteolin-7-O glucoside; dicaffeoyl quinic acid; luteolin. The chloroform extract showed strong activity and selectivity against HeLa, HT-29 and MCF-7 cell lines. The results indicated that low concentrations (100 mu g/mL and 50 mu g/mL) of chloroform and methanol extracts had no toxic effects on the NIH/3T3 cells. Therefore, the methanol extract from A. multifida aerial parts may be a natural source of antioxidants and antibacterial and seems to have potential application in both medicine and the food industry. In additon, the chloroform extract might be a potential anti-cancer agent
The clinical success of different root canal treatments in primary molars
No full textObjectives: To examine the success rate of root canal treatment in primary molars with the use two different root canal instrumentation ways, irrigation solutions and root canal sealers. Materials and Methods: Root canal treatment was applied to 120 second primary molars of 69 children between 5-8 years old. The teeth were divided in 8 groups randomly according to instrumentation ways [conventional stainless-steel hand files / Nickel-titanium (Ni-Ti) rotary files], irrigation solutions [0.5% sodium hypochlorite (NaOCl) and 0.9% saline solution combination / 0.4% chlorhehexidine (CHX)] and root canal sealers [Zinc oxide eugenol cement (ZOE) and Apexit Plus (AP)]. All teeth were restored with stainless steel crowns. The teeth were followed 12 months both clinically and radiographically. All data was analyzed statistically by χ2 and Wilcoxon test. Results: Statistical significance were found according to “age” and “root canal sealers” factors on success rate of root canal treatment (p<0.05). No statistical significance were found according to gender, jaw, tooth type, root canal instrumentation ways and irrigation solutions on success rate of root canal treatment (p>0.05). The clinically and radiographically success rate of ZOE and AP were 98.3% and 68.3%, respectively. Conclusions: Root canal treatment is a successful treatment in primary molars. Ni-Ti rotary files and CHX can be a good alternative for root canal treatment in primary molars. The most effective factor to obtain clinical success of root canal treatment is properties of using root canal sealer
Antimicrobial Efficacy of Ozone Therapy on Cariogenic Bacteria
No full textObjective: This study aimed to evaluate the antimicrobial effectiveness of ozone therapy on cariogenic bacteria
Parabolic sublinear operators with rough kernel generated by parabolic calderön-zygmund operators and parabolic local campanato space estimates for their commutators on the parabolic generalized local morrey spaces
No full textIn this paper, the author introduces parabolic generalized local Morrey spaces and gets the boundedness of a large class of parabolic rough operators on them. The author also establishes the parabolic local Campanato space estimates for their commutators on parabolic generalized local Morrey spaces. As its special cases, the corresponding results of parabolic sublinear operators with rough kernel and their commutators can be deduced, respectively. At last, parabolic Marcinkiewicz operator which satisfies the conditions of these theorems can be considered as an example
La croissance économique turque entre 1980 et 1995 s’explique-t-elle par les dépenses publiques, le travail informel ou le capital humain ?.
No full textCet article tente d’identifier empiriquement les déterminants de la croissance turque à partir de données annuelles de 1980 à 1995. L’analyse empirique s’appuie sur un modèle théorique "canonique" de croissance qui nous sert à élaborer des résultats empiriques. Il nous invite à construire un résidu de Solow, à partir des parts des rémunérations des facteurs, dont on cherche ensuite les déterminants empiriquement. Après avoir effectué une première sélection de variables économiques, dont les résultats ne sont pas présentés ici, deux modèles concurrents peuvent expliquer le résidu de Solow. Un premier modèle dans lequel les dépenses publiques joueraient un rôle essentiel et un second modèle dans lequel le travail informel (approximé par le taux de chômage) et le capital humain (approximé par des variables d’éducation) joueraient, indépendamment, un rôle important, sont acceptables a priori en se basant sur des critères statistiques standards. Une comparaison des deux modèles à partir des tests de modèles, conclut cependant en faveur de la première explication. Les résultats doivent être néanmoins considérés avec beaucoup de précautions.Dépenses publiques; résidu de Solow; Croissance économique;
Guest Editorial Special Issue on Sensing and Machine Learning for Automotive Perception
No full textGreen Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Signal Processing System
Dental caries and body mass index in a sample of 12-year-old eastern Turkish children
No full textAbstractBackground/purposeThe objective of the present study was to investigate the possible correlation between the body mass index (BMI) and dental caries among 12-year-old Turkish children.Materials and methodsThe clinical study was performed on 224 12-year-old children at the Department of Pediatric Dentistry, Atatürk University, Erzurum, Turkey, to determine their dental caries and malnutrition status. To assess the nutritional status, the weight for age, height for age, and BMI were determined. The BMI status was categorized into four groups: 1 (underweight), 2 (normal weight), 3 (overweight), and 4 (obese). The occurrence of dental caries was determined using the decayed, missing, and filled teeth (DMFT) index.ResultsRespective mean DMFT values for BMI-1, BMI-2, BMI-3, and BMI-4 were 1.44, 1.47, 1.81, and 2.33, respectively. There were significant differences between BMI-1 and BMI-4 (P = 0.019, r2 = 0.73) and between BMI-2 and BMI-4 (P = 0.022, r2 = 0.72) values.ConclusionPaedodontics should consider the relationship between patients’ body composition and oral health, in order to provide the best service for pediatric patients, and should advice parents on oral-health promotion
Integral inequalities for quasi-convex functions and applications
No full textIn this paper, using integral representations for n-times differentiable mappings, we establish new generalizations of certain Hermite-Hadamard type inequality for quasiconvex functions. We also give some new estimations for special means of real numbers
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