In this thesis the chemical composition of heartsease (Viola tricolor L.) was studied to support the evidence-based determination of its biological activities. Henceforth, a proper sample preparationmethodwas developed, yielding a fraction rich on polar constituents (characteristic of the traditionally applied aqueous extract), which was further separated by conventional Sephadex LH-20 column c...

OBJECTIVE The Visual Input/Output Locator Algorithm (VIOLA) is a software-assisted method for prescribing amplification targets and selecting a hearing aid to match the targets. Although the procedure calls for selection and fitting of hearing aids in terms of their pure-tone input/output functions in a coupler, it is assumed that a hearing aid that matches the coupler prescription targets will...

In the present study, Viola betonicifolia (whole plant) and solvent fractions obtained thereof were evaluated for various micronutrients such as lead, copper, chromium, iron, nickel, zinc, cadmium, cobalt and macronutrients such as sodium, potassium and calcium using atomic absorption spectrophotometer and flame photometry respectively. It was observed that cobalt and cadmium were not detectibl...

The plant cyclotides are a family of 28 to 37 amino acid miniproteins characterized by their head-to-tail cyclized peptide backbone and six absolutely conserved Cys residues arranged in a cystine knot motif: two disulfide bonds and the connecting backbone segments form a loop that is penetrated by the third disulfide bond. This knotted disulfide arrangement, together with the cyclic peptide bac...

The National Library of Medicine (NLM) has made a collection of over a 1.2 million research articles containing 3.2 million figure images searchable using the Open-i multimodal (text+image) search engine. Many images are visible light photographs, some of which are images containing faces (“face images”). Some of these face images are acquired in unconstrained settings, while others are studio ...

We consider here pseudo-differential operators whose symbol σ(x, ξ) is not infinitely smooth with respect to x. Decomposing such symbols into four -sometimes fivecomponents and using tools of paradifferential calculus, we derive sharp estimates on the action of such pseudo-differential operators on Sobolev spaces and give explicit expressions for their operator norm in terms of the symbol σ(x, ...

Eleven species of Mordellidae are newly recorded for New Brunswick, Canada. Six of these, Falsomordellistena discolor (Melsheimer), Falsomordellistena pubescens (Fabricius), Mordellistena ornata (Melsheimer), Mordellaria undulata (Melsheimer), Tomoxia inclusa LeConte, and Yakuhananomia bidentata (Say)are new for the Maritime provinces. Falsomordellistena pubescens is new to Canada. Pelecotoma f...

OBJECTIVES In previous studies, antioxidant activity of Viola odorata L. has been demonstrated. In this study, we have investigated the anti-melanogenic effect of extract and fractions of the plant in B16F10 cell line. MATERIALS AND METHODS Impact of different increasing concentrations of extract and fractions of V. odorata was evaluated on cell viability, cellular tyrosinase, melanin content...