Received 26 November 2011 Accepted 10 November 2012 Abstract The purpose of the present study was to investigate levels of nickel in feathers of the Western Reef Heron Egretta gularis (N=15) and Siberian Gull Larus heuglini (N=15). Bird samples were collected from November to December 2010 in Hara Biosphere Reserve. Assaying nickel by using Shimadzu AA 680 flame atomic absorption spectrophotome...

A method for the analysis of flavonoids in Astragali Radix by high-performance liquid chromatography (HPLC) combined with photodiode-array detection (DAD) and an electrospray ionization (ESI)--mass spectrometry (MS) was developed. After the samples were extracted with ethanol, the optimum separation conditions for these analytes were achieved using a gradient elution system and a 2.0 x 150 mm S...

In this present study our aim was to evaluate In vitro antioxidant and free radical scavenging potential of methanolic extracts of Bauhinia variegata Linn. Different parts of Bauhinia variegata like leaves, bark and flowers have free radical scavenging activity by hydroxyl radical scavenging method. All extracts have different level of antioxidant activity. Methanol extracts was found to be goo...

P-coumaric acid is a nonflavonoid phenolic acid and is a major constituent of the species Cynodon dactylon Linn. (Pers.). In this study isolation of P-coumaric acid was achieved by preparative TLC and the compound thus isolated was characterised by UV, mass, and H(1) NMR spectral analysis. An isocratic RP-HPLC method was developed for the estimation of P-coumaric acid from methanolic extracts o...

Miniplates have been used during the last decade to facilitate stability between bony fragments in the maxillofacial region and are currently the preferred surgical method for the fixation of fractures and osteotomies. The aim of this study was to evaluate and compare the biomechanical behaviors of six different types of miniplates used to reconstruct mandibular body fractures: Group 1 (straigh...

The aim of this study was to evaluate the antioxidant activity, screening the phytogenic chemical compounds, and to assess the alkaloids present in the E. intermedia to prove its uses in Pakistani folk medicines for the treatment of asthma and bronchitis. Antioxidant activity was analyzed by using 2,2-diphenyl-1-picryl-hydrazyl-hydrate assay. Standard methods were used for the identification of...

BACKGROUND Ghee (clarified butter) also known as ghrita, has been utilized for thousands of years in Ayurveda. Ghee is mostly prepared by traditional method in Indian households or by direct cream method at industry level. Ayurvedic classics mention that ghrita made from cow milk is superior. However, there is no scientific comparison available on preparation methods and essential fatty acids c...

Objective: This study aimed to evaluate the effectiveness of two methods of visual magnification (operating microscope and light head magnifying glass) for removal of composite flash around orthodontic metal brackets. Material and Methods: Brackets were bonded in the center of the clinical crown of sixty well-preserved human premolars. Half of the sample was bonded with conventional Transbond...

Objective: A rapid and sensitive bioanalytical method based on liquid chromatography coupled with mass spectrometry detection with positive ion electrospray ionization was developed for the determination of ranitidine hydrochloride in human plasma using clarithromycin as the internal standard. Methods: A simple protein precipitation method was performed using perchloric acid 5%. The analyte and...

Abstract Objective This article aimed to assess the effects of double application universal adhesives on shear bond strength orthodontic brackets. Materials and Method Seventy-five extracted human premolars were used. The teeth randomly assigned into five groups based adhesive procedure (n = 15). Scotchbond Universal (3M Oral Care) Prime&Bond (Dentsply) used (following manufacturer’s instru...