Renewable benzoxazine monomer from Vanillin: Synthesis,characterization, and studies on curing behavior

A novel renewable based benzoxazine, 3‐(furan‐2‐ylmethyl)?8‐methoxy‐3,4‐dihydro‐2H‐1,3‐benzoxazine‐6‐formyl (Va‐Bz), has been synthesized from a lignin derived chemical “vanillin” without solvents. Poly (Va‐Bz) has high Tg and excellent thermal and adhesive properties. A mechanism of cross‐linking, due to electrophilic substitution at furan and decarboxylation of carboxylic group of benzene ring, is suggested. © 2013 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2014 , 52, 7–11     

Pharmacological Insights into Halophyte Bioactive Extract Action on Anti-Inflammatory,Pain Relief and Antibiotics-Type Mechanisms

The pharmacological activities in bioactive plant extracts play an increasing role in sustainable resources for valorization and biomedical applications. Bioactive phytochemicals, including natural compounds, secondary metabolites and their derivatives, have attracted significant attention for use in both medicinal products and cosmetic products. Our review highlights the pharmacological mode-of-action and current biomedical applications of key bioactive compounds applied as anti-inflammatory, bactericidal with antibiotics effects, and pain relief purposes in controlled clinical studies or preclinical studies. In this systematic review, the availability of bioactive compounds from several salt-tolerant plant species, mainly focusing on the three promising species Aster tripolium, Crithmum maritimum and Salicornia europaea, are summarized and discussed. All three of them have been widely used in natural folk medicines and are now in the focus for future nutraceutical and pharmacological applications.     

The Foldy‐Lax approximation of the scattered waves by many small bodies for the Lamé system

We are concerned with the linearized, isotropic and homogeneous elastic scattering problem by many small rigid obstacles of arbitrary, Lipschitz regular, shapes in 3D case. We prove that there exist two constants a₀ and c₀, depending only on the Lipschitz character of the obstacles, such that under the conditions and on the number M of the obstacles, their maximum diameter a and the minimum distance between them d, the corresponding Foldy‐Lax approximation of the farfields is valid. In addition, we provide the error of this approximation explicitly in terms of the three parameters and d. These approximations can be used, in particular, in the identification problems (i.e. inverse problems) and in the design problems (i.e. effective medium theory).     

Preassigning the shape for bodies of constant width

Monatshefte für Mathematik - The paper deals with the problem of preassigning the shape for bodies of constant width. In particular, the free choice of boundary points for sets of constant...     

The no-response approach and its relation to non-iterative methods for the inverse scattering

This paper addresses the inverse obstacle scattering problem. In the recent years several non-iterative methods have been proposed to reconstruct obstacles (penetrable or impenetrable) from near or far field measurements. In the chronological order, we cite among others the linear sampling method, the factorization method, the probe method and the singular sources method. These methods use differently the measurements to detect the unknown obstacle and they require the use of many incident fields (i.e. the full or a part of the far field map). More recently, two other approaches have been added. They are the no-response test and the range test. Both of them use few incident fields to detect some informations about the scatterer. All the mentioned methods are based on building functions depending on some parameter. These functions share the property that their behaviors with respect to the parameter change drastically. The surface of the obstacle is located at most in the interface where these functions become large. The goal of this work is to investigate the relation between some of the non-iterative reconstruction schemes regarding the convergence issue. A given method is said to be convergent if it reconstructs a part or the entire obstacle by using few or many incident fields respectively. For simplicity we consider the obstacle reconstruction problem from far field data for the Helmholtz equation. Gen Nakamura is partially supported by Grant-in-Aid for Scientific research (B)(2)(N.14340038) of Japan Society for Promotion of Science. Mourad Sini is supported by Japan Society for Promotion of Science.     

Unique continuation for the elastic transversely isotropic dynamical systems and its application

In this paper we prove the unique continuation property of the solution for the elastic transversely isotropic dynamical systems with smooth coefficients satisfying some conditions and apply it to extending the Dirichlet to Neumann map. The proof is based on the localized Fourier-Gauss transformation and Carleman type estimate.     

Decolorization of ranocid fast blue dye by bacterial consortium SV5

Synthetic dyes are not uniformly susceptible to degradation in conventional wastewater treatment processes. A number of biotechnological processes have been suggested as of potential interest in combating these pollutants in an ecofriendly manner. We determined the optimal parameters necessary for the bacterial consortium SV5 to decolorize Ranocid Fast Blue dye. The best results were obtained with a 0.1% (w/v) concentration of both starch and yeast extract supplemented in Bushnell Hass Medium under static conditions at a temperature of 37°C in less than 24 h with an initial dye concentration of 100 ppm.