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Salonen4,e and Kimihiro Yamashita1,f 1 Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan 2 Materials Chemistry, Division of Engineering, Hosei University, 3-7-2, Kajino-cho, Koganei-shi, Tokyo 184-8584, Japan 3 Process Chemistry Centre, Åbo Akademi University, FIN-20500 Turku, Finland 4 Turku Centre for Biomaterials, University of Turku, FIN-20500 Turku, Finland a hosei_amaoka@yahoo.co.jp, b erik.vedel@abo.fi, c nakamura.bcr@tmd.ac.jp, d moriyosi@k.hosei.ac.jp, e jusalon@utu.fi, f yama-k.bcr@tmd.ac.jp Keywords: bioactive glass, electrical polarization, SBF immersion, bioactivity Abstract We investigated the electrical polarizability of MgO and B2O3 containing bioactive glass (MBG).
The results suggest that Ca was first dissolved from the materials surface and then gradually deposited back to the forming skeletal structure.

Journal Citation (to be inserted by the publisher) Copyright by Trans Tech Publications Positron Annihilation Lifetime Measurement in Supercritical Fluid of N2O Kazushi FUNAKOSHI1, Yasushi KINO 1, Tsutomu SEKINE 1, Hiroshi KUDO1, Yasuo ITO2 and Takenori SUZUKI 3 1 Department of Chemistry, Tohoku University, Sendai 980-8578, Japan 2 Research Center for Nuclear Science and Technology, The University of Tokyo, Tokai, 319-1195, Japan 3 Radiation Science Center, High Energy Accelerator Research Organization, Tsukuba, 305-0801, Japan Keywords: Positron annihilation lifetime, Positronium, Ore model, Spur model, Supercritical fluid, Nitrous oxide.
The PAL measurement has an advantage in investigating the many-body effects and microscopic structures of supercritical fluids; the positron annihilation rate is very sensitive to electron densities.
Y.K. appreciates support by Inoue Foundation for Science References [1] Principles and applications of Positron and Positronium Chemistry, eds.

Effective Hydroalkoxylation/Cyclization of Alkynyl Alcohol Catalyzed by In(OTf)3 ZHANG Jian-Tinga, ZHU Cheng-Linb, FENG Jun-Mina, WANG Ruic, HUANG Shuang-Ping a*, WANG Xiao-Jia* a School of Pharmacy, Jiangxi Science and Technology Normal University, Jiangxi 330013, China; b School of Life Science, Jiangxi Science and Technology Normal University, Jiangxi 330013, China; c School of Chemistry & Chemical Engineering, Jiangxi Science and Technology Normal University, Jiangxi 330013, China Keywords: cyclization, alkynyl alcohol, In(OTf)3, catalyst Abstract: An effective hydroalkoxylation/cyclization of alkynyl alcohol catalyzed by In(OTf)3 was reported, which could be used to the synthesis of oxygen-containing heterocycles.
The importance of oxygen-containing compound promoted our group to develop more effective methodologies to construct this structure.
In Comprehensive Heterocyclic Chemistry; Katrinsky, A.

In this work the La0.9Sr0.1Ga0.8Mg0.2O3-d composition was synthesized by a soft chemistry route seeking for a more homogeneous microstructure.
The main purpose was to evaluate the effect of the sintering method on the structure and ionic conductivity of the sintered pellets prepared with chemically homogeneous powders.
The X-ray diffraction patterns (Fig. 1) of all sintered pellets exhibit only the diffraction peaks (indicated by *) of the orthorhombic structure (Imma space group) characteristic of this composition.

The descriptors are chemical and physical characteristics which are obtained from the structure of the chemical, and relate the chemical structure to its toxigenicity mechanism.
The 2D structures of the compounds obtained from the EPI (Estimation Programs Interface) Suite™ were optimized based on the AM1 semi empirical method.
Prediction of environmental toxicity and fate using quantitative structure–activity relationships (QSARs) [J].
Quantitative structure-activity relationships for predicting carcinogenicity and carcinogenicity [J].
Environmental Toxicology and Chemistry, 2003 22(8) 1885-1893

The swelling behavior and the structure of the prepared chitosan were invested.
The structure parameters of prepared chitosan and original chitin are shown in the Table 2.
The looser structure of CS1 is more beneficial to the permeation of NaOH and H2O.
And the swelling behavior and the structure of the prepared chitosan were invested
Roberts, in: Chitin chemistry (1st ed.).

Synthesis and Characterization of ALaFeNi0.5W0.5O6 (A= Sr or Ca), a New Structure Distorted Double Perovskite A.
Substitution of different ions on each site is readily accepted making the perovskite structure type one of the most frequently encountered in solid-state inorganic chemistry.
Phosphorus and the noble gases are also not observed in the perovskite structure.
The ideal perovskite structure is composed of a three dimensional network of regular corner-linked MX6 octahedra.
The crystal structures belong to the tetragonal I 4/m space group.

Preparation of phosphomolybdic acid/activated semi-coke catalyst and its application for oxidative desulfurization of gasoline Liang Wang 1.a Chunhu Li 1,b Zhen Zhang 2,c 1College of Chemistry and Chemical Engineering, Ocean University of China, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, P.R.China,Qingdao 266100 2China petroleum karamay petrochemical company, P.R.China, karamay 834000 awangliang_good@163.com，blichunhu@ouc.edu.cn, c25645720@qq.com Keywords: phosphomolybdic acid; desulfurization; oxidation; characterization Abstract.
Energy dispersive spectroscopy is used to analyze the chemical compositions of phosphomolybdic acid / activated semi-coke catalysts, the signal of Mo can be detected, and its intensity is twelve times as that of P signal, which is in agreement with the keggin structures of phosphomolybdic acid clusters. 3.2 Influence of the amount of catalysts on the desulfurization yield of diesel To improve the desulfurization yield of diesel, different amount of phosphomolybdic acid /semi-coke were added into the two-phase system as catalyst for H2O2 .The experimental results are shown in Fig.2.

Nagarathnam Post Graduate and Research Department of Chemistry, The Madura College (Autonomous), Tamil Nadu, India, India Email: a.keerthixavi1968@gmail.com b.anguusha@gmail.com sathyaganesh2007@gmail.com Dr.
GandhiRajan Post Graduate Department of Chemistry Vivekananda College (Autonomous) Chennai, Tamil Nadu, India.  
The local structure of Al2O3, Cr:Al2O3, and V:Al2O3 are studied using powder XRD and reported.

Comparison of the DC and AC Conductivities of Li2O-P2O5 Glass Jiyong Pan and Xueqiang Cao Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, Jilin, China Keywords: Phosphate glasses; DC conductivity; Activation energy Abstract.
In the phosphate glasses, there are mixed structure unites including pyrophosphate, (P2O7) 4,metaphosphate, (PO3) 1 and orthophosphate (PO4) 3 groups [3].