Structure Evolution of Volcanic Glass by Dynamic Compression

金沢大学大学院自然科学研究科東北大学"Scedule:17-18 March 2003, Vemue: Kanazawa, Japan, Kanazawa Citymonde Hotel, Project Leader : Hayakawa, Kazuichi, Symposium Secretariat: XO kamata, Naoto, Edited by:Kamata, Naoto

Changes in Serum Protein in Mice Infected with Hymenolepis nana Eggs

We investigated the changes in serum protein contents of male ddY mice following primary and secondary infections with Hymenolepis nana eggs. There was a marked decrease in the total serum protein contents throughout the course of both primary and secondary infections. The reduction of total serum protein contents occurred as early as 1 day after primary and secondary infections and was particularly prominent after secondary infection. A quiet similar pattern of reduction was observed in the levels of serum albumin. The total globulin content increased immediately after primary infection, decreased to nearly the normal level at day 4, and again increased to a peak at day 7 after infection. In secondary infection, elevated total globulin contents decreased to lower than the normal level at day 2 and quickly increased thereafter. The alpha- and beta-globulin contents fluctuated after primary and secondary infections showing a pattern similar to that of total globulin contents. The levels of gamma-globulin increased with moderate fluctuation and reached a maximum level on day 7, showing a 13-fold increase in primary infection and 23-fold increase in secondary infection. The results clearly showed that the changes in the serum protein contents early in the infection process were important to understand the pathogenicity of H. nana

Recovery of Phosphate Rock Equivalents from Incineration Ash of Chicken Manure by Elution-Precipitation Treatment

In order to obtain calcium phosphates - a phosphate rock equivalent - from the incineration ash of chicken manure, which is obtained from power generation systems that use the manure for fuel, incineration ash was treated with an aqueous solution of nitric acid to elute phosphorus. By using 0.3 M of HNO3, most of the phosphorus could be eluted from 1.0 g of ash within 0.1 h. Compared with the composted chicken manure that was previously examined in our laboratory, the concentration of HNO3 was increased for this session of elution. Using the incineration ash of chicken manure made it possible to remove inorganic species at a lower boiling or sublimation temperature, and organic species by calcination in the power generation system. Compared with composted chicken manure, the concentrations of phosphorus contained in the incineration ash and the nitric acid extract were higher in the incineration ash. XRD analysis showed that the obtained nitric acid extract could be treated with aqueous NH3 to form a precipitation of poorly-crystallized calcium hydroxyapatite (Ca10(PO4)6(OH)2), which is one of main components in phosphate rock. In order to confirm the formation and purity of calcium phosphate species, the precipitation calcination was conducted at 1,078 K for 5 h. XRD revealed that the calcined solid was tricalcium phosphate, and no contamination was evident. These results reveal that a phosphate rock equivalent could be easily obtained from the incineration ash of chicken manure, which means that approximately 14% of the phosphate rock that is currently being imported into Japan could be replaced by this product

A Case Report of Thelaziasis Callipaeda

This is the second case of thelaziasis callipaeda (human parasitosis with Thelazia nematodes) reported in Okayama Prefecture. In this patient, the nematode was discovered by chance in the upper palpebral conjunctival sac during tests prior to a cataract operation and was removed. There was no sensation of any physical disorder. The nematode was a male, and it was assumed from the degree of curvature of the tip of the tail that the course parasitism was only a month or so long. Both of the cases in Okayama occurred in Mitsu-gun, which could be of importance in determining the spread of thelaziasis callipaeda in the future