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501.
A. Radhakrishnan R. E. Risbon R. T. Patel B. Ruiz C. A. Clifford 《Veterinary and comparative oncology》2004,2(1):36-42
An 11‐year‐old male domestic shorthair cat was examined because of a soft‐tissue mass on the left tarsus previously diagnosed as a malignant extramedullary plasmacytoma. Findings of further diagnostic tests carried out to evaluate the patient for multiple myeloma were negative. Five months later, the cat developed clinical evidence of multiple myeloma based on positive Bence Jones proteinuria, monoclonal gammopathy and circulating atypical plasma cells. This case represents an unusual presentation for this disease and documents progression of an extramedullary plasmacytoma to multiple myeloma in the cat. 相似文献
502.
J. D. Garcia Perez C. Charlton P. Martin Ruiz 《Land Degradation \u0026amp; Development》1995,6(3):149-161
This paper proposes a methodological approach to data gathering as a sound basis for understanding land degradation processes, breaking down barriers of distrust between Government officials and land users, and promoting participation in planning for soil and water conservation. It examines how landscape changes, of value as indicators of erosion, are perceived by land users and can be used in planning. It is proposed that the participation of land users in the construction of questionnaires, data gathering, analysis and writing up of the findings are examples of the participatory initial stages in planning. 相似文献
503.
A solid‐phase microextraction method was developed to analyze volatile compounds in bread crumb. Three different fibers usually used to determine volatile compounds in foodstuffs were tested, and Carboxen/ Polydimethylsiloxane showed the best extraction efficiency. This method can determine ≈65 compounds, although only the main compounds responsible for the crumb aroma profile (6 alcohols, 5 aldehydes, 5 acids, and 2 ketones) were evaluated quantitatively with a relative standard deviation <20% and limits of detection were 1–18 mg/kg. All the compounds showed a good linearity in concentration ranges of interest with acceptable correlation coefficients (r > 0.99) and recoveries close to 100%. The optimized solid‐phase microextraction (SPME) method was applied to determine aromatic compounds in some precooked frozen breads marketed in Spain (baguettes and ciabattas). 相似文献