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Abstract  

Mössbauer spectroscopy is a dynamic field with applications ranging from physics to biology. This paper gives a review of Mössbauer spectroscopy activities carried out by different groups in China. About thirty groups are distributed all over China for both fundamental and practical aspects. In-beam Mössbauer setup was established at HIRAC accelerator in Lanzhou, and the nuclear scattering facility has already been planned at Shanghai Synchrotron Radiation Light Source. In this review, some recent developments and achievements are discussed, as examples: (1) Brownian motion in anisotropic media, (2) applications to archaeology, and (3) molecule-based magnetic materials.

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Multimodális hiperspektroszkópia – előrelépés a digitális technológia felé a méhnyakszűrésben

Multimodal hyperspectroscopy – the use of digital technology in cervical cancer screening

Orvosi Hetilap
Authors: Zoárd Tibor Krasznai, Zsuzsa Bagoly, Eszter Nagy, Zsolt Farkas, Róbert Póka, Péter Török, Rudolf Lampé, and Zoltán Hernádi

. 21 Cothren RM, Richards-Kortum R, Sivak MV Jr, et al. Gastrointestinal tissue diagnosis by laser-induced fluorescence spectroscopy at endoscopy. Gastrointest Endosc. 1990; 36: 105

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The hyperspectral imaging spectroscopy is a promising future tool in the field of optical remote sensing and it creates new perspective for modern information management in site specific agricultural production. One can determine quantitative relationships between the environmental and physiological parameters of vegetation cover and the soil quality parameters as well as the features of the reflectance spectra by the newgeneration data monitoring and sampling method. These reflectance spectra have characteristics of the different crops and provide with the possibility of accurate classification and detection. The objective was to present the technological capabilities of hyperspectral imaging and show some exprimental results of nutrient sensitive changes in the winter wheat spectra. There were found two characteristic wavelength ranges: the 500 to 800 nm for wheat kernel samples and the 1650 nm to 1800 nm for wheat ear samples where fertilizer treatments showed definite trend on the basis of the normalized reflectance spectra.

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Summary  

This review considers analytical possibilities of Mössbauer spectroscopy in biomedical research. The results of various biomedical applications of Mössbauer spectroscopy were grouped as quantitative and qualitative studies of biological molecules during molecular diseases, studies of the effect of environmental factors on biological molecules, studies of metabolic processes with Mössbauer elements, studies of dynamic properties, studies of pharmaceuticals containing Mössbauer elements. These results demonstrate wide possibilities of Mössbauer spectroscopy in analysis of various biologically important species for obtaining information about the molecular nature of diseases and pathological processes.

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Abstract  

The application of UV-Vis and time-resolved laser-induced fluorescence (TRLF) spectroscopies to direct speciation of uranium(VI) in environmental samples offers various prospects that have, however, serious limitations. While UV-Vis spectroscopy is probably not sensitive enough to detect uranium(VI) species in the majority of environmental samples, TRLFS is principially able to speciate uranium(VI) at very low concentration levels in the nanomol range. Speciation by TRLFS can be based on three parameters: excitation spectrum, emission spectrum and lifetime of the fluorescence emission process. Due to quenching effects, the lifetime may not be expected to be as characteristic as, e.g., the emission spectrum. Quenching of U(VI) fluorescence by reaction with organic substances, inorganic ions and formation of carbonate radicals is one important limiting factor in the application of U(VI) fluorescence spectroscopy. Fundamental photophysical criteria are illustrated using UV-Vis and fluorescence spectra of U(VI) hydrolysis and carbonato species as examples.

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Progress in Agricultural Engineering Sciences
Authors: Marina Vranić, Mladen Knežević, Zsolt Seregély, Krešimir Bošnjak, Josip Leto, and Goran Perčulija

Blanco, M., Coello, J., Iturriaga, H., Maspoch, S., Gonzalez, R. (1998) Determination of water in lubricating oils by mid- and near-infrared spectroscopy. Microchim. Acta 128: 235. Determination of water in lubricating oils by

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. In: Proc. ASD and IEEE GRS; Art, Science and Applications of Reflectance Spectroscopy. Vol. II/7. Boulder, Colorado. Ben-Dor, E. et al., 2006. Quantitative mapping of the soil rubification process on sand dunes using an

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, J.R. (eds) 2005 . Impedance Spectroscopy. Theory, Experiment, and Applications . 2 nd ed. John Wiley & Sons . Hoboken, New Jersey, USA . Blinks , L.R. , Skow , R

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Mono and dinuclear Pd(II) complexes with pyrazole and imidazole-type ligands

Synthesis, characterization and thermal behaviour

Journal of Thermal Analysis and Calorimetry
Authors: V. Lucca Neto, A. Mauro, A. Netto, A. Moro, and V. Nogueira

Abstract  

The cyanate-bridged cyclopalladated compound [Pd(C2,N-dmba)(μ-NCO)]2 (dmba=N,N-dimethylbenzylamine) reacts in acetone with pyrazole (pz), 3,5-dimethylpyrazole (dmpz), imidazole (imz) and 2-methylimidazole (mimz) to give [Pd2(C2,N-dmba)2(μ-NCO)(μ-pz)] (1), [Pd2(C2,N-dmba)2(μ-NCO)(μ-dmpz)] (2), [Pd(C2,N-dmba)(NCO)(imz)] (3) and [Pd(C2,N-dmba)(NCO)(mimz)] (4), respectively. The compounds were characterized by elemental analysis, IR spectroscopy and TG. The thermal decomposition of the compounds occurs in three consecutive steps and the final decomposition products were identified as Pd(0) by X-ray powder diffraction. The thermal stability order of the complexes is 2>3>1>4.

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Berardo, N., Pisacane, V., Battilani, P., Scandolara, A., Pietri, A., Marocco, A. 2005. Rapid detection of kernel rots and mycotoxins in maize by near-infrared reflectance spectroscopy. J. Agricul. and Food Chem

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