Providing credibility around the world: effective devices of the Cape Town Convention

This paper analyzes the characteristics and effects of the Cape Town Convention, which provides legal protection for investors in relation to asset-based aircraft financing. Some countries lack credibility for investors, who believe that the protection level of creditor rights in the country differs before and after investment. This time inconsistency problem results in credit rationing. Airlines in such countries cannot access the credit market, particularly the international capital market. This paper first examines why developing countries have been suffering from a lack of credibility and from credit rationing, and then explores how the Convention resolves this problem. We focus on two devices: the white list system and the system of declarations. The former gives the contracting states incentive not to break the Convention. The latter is considered to promote the ratification of the Convention by potential contracting states. These devices enable the Convention to attract a number of states.     

Phosphoglucomutase1 and 6-phosphogluconate dehydrogenase types in human skin and adipose tissue

Attempts were made to detect phenotypes of the enzymes phosphoglucomutase (PGM) and phosphogluconate dehydrogenase (PGD) in human skin and adipose tissues. Both enzymes could be typed using approximately 3 mg wet weight of tissue. Phenotypes could be distinguished after up to 15 days of aging for PGM and ten days of aging for PGD. Analysis of isoenzymes is potentially useful for mediolegal identification of human skin and adipose tissue.     

Identification of human urinary stains by the quotient uric acid/urea nitrogen

Uric acid (UA) and urea nitrogen (UN) were determined in urinary stains and the UA/UN x 20 values were calculated. The values in human urinary stains were 1.11-4.21, while those in other mammals except some of chimpanzees, were under 0.7, and those in fecal stains of birds were over 80. Most of the stains of other human body fluids or plant juices tested contained neither UA nor UN, and some contained one, but never the other. Ascorbic acid (AS) of up to 100 mg/dl in urine did not interfere with UA determination when dried human urinary stains were analyzed. It was also found that the contents of UA were very low at the peripheral parts of urinary stains. The present results indicate that the quotient UA/UN is useful for identification of human urinary stains in forensic practice provided that the peripheral part of the stain is not used.     

Tissue distribution of paraquat and diquat after oral administration in rats

The differential distribution of paraquat and diquat in liver, kidney, lung, brain and heart has been studied after oral administration of the LD50 or LD50/2 to rats. Paraquat concentrations were highest in all organs at 24 hours; at this time concentrations in kidney and lung were 2 to 3 times higher than at 2 hours. In contrast, with the exception of kidney, tissue diquat concentrations were highest at 2 hours. There was severe lung damage at 24 hours after paraquat; diquat aid not produce severe lung lesions, but caused intestinal distention and diarrhea. These findings suggest that the difference in the toxicity of paraquat and diquat is related to their difference in tissue distribution and excretion.     

A practical method for the accurate determination of methemoglobin in blood containing carboxyhemoglobin

Kinetics of the oxidation of carboxyhemoglobin (HbCO) by potassium ferricyanide was studied photometrically in a weakly acid solution. An increase in the absorbance at 630 nm reached a maximum within 10 min when over a 100-fold excess of ferricyanide to hemoglobin iron was used. A slight decrease in the absorbance was observed after completion of the reaction when over a 500-fold excess of the reagent was used. In the presence of 0.4% Sterox SE, the absorbance began to decrease without complete oxidation. From these findings, a simple, rapid and accurate method for the determination of methemoglobin (Met-Hb) in blood was devised. The method was compared with two other methods, using 11 blood samples containing various amounts of HbCO, and proved to be suitable for blood containing elevated HbCO as well as for ordinary blood.     

Modelling the demand for foreign savings in developing countries: Testing a hypothesis with Latin American data

The demand for foreign savings is an important feature of the economy in many LDCs, and it would be helpful to have a better understanding of its determinants. This paper considers one approach to modelling the demand for foreign savings in LDCs. If the demand for investment shifts out more buoyantly than does the supply of domestic saving in response to current macro‐economic conditions, persistent demand for foreign savings will be generated as a normal feature of the development process. We test this hypothesis with elasticities computed from the parameters of investment and domestic saving equations estimated for a sample of 21 Latin American countries. The empirical results show that in approximately half of the countries in the sample (and most notably in Brazil and in Mexico), the demand for foreign savings is rooted in the parameters of the investment and domestic saving functions.     

New detection method for ribonuclease 2 (RNase 2) using immunoblotting with specific antibody

A ribonuclease (RNase) was isolated from the urine of a 35-year-old male and purified to electrophoretic homogeneity. The enzyme was tentatively designated RNase 2. A rabbit antibody produced by injection of the purified RNase 2 was able to distinguish RNase 2 from another type of RNase coexisting in body fluids. With this antibody it was possible to detect RNase 2 isozymes in human serum and urine without difficulty using isoelectric focusing or sodium dodecyl sulfate-polyacrylamide gel electrophoresis, followed by immunoblotting. Both RNase 2 in serum and urine seemed to exist in multiple forms with regard to their molecular masses and pI values. This technique may prove to be useful in genetic and forensic studies of RNase polymorphism.     

Identification of fetal bloodstains by enzyme-linked immunosorbent assay for human alpha-fetoprotein

A rapid and highly sensitive enzyme-linked immunosorbent assay (ELISA) for determination of human alpha-fetoprotein (AFP) using commercially available reagents was devised and applied to identification of fetal bloodstains. When experimentally prepared bloodstains, 1 by 2 mm in area, were submitted to analysis, only fetal bloodstains showed positive reactions in the present ELISA. The reactions did not change significantly when these bloodstains were stored at room temperature for one week. The present ELISA seems to be suitable for forensic science practice.     

Correlates of depressive symptoms among battered women

It is important to examine the concomitants of depressive symptoms reported by battered women because of the high frequency and potentially vulnerability-enhancing effects of these symptoms within battering relationships. In the present study, 10 environmental and behavioral skills correlates of depressive symptoms were examined in 136 battered women. The results of the Simultaneous Multiple Regression suggested that 46% of the variance in depression scores could be accounted for by scores on measures of these 10 variables. Four variables were found to be uniquely and significantly associated with depressive symptoms: self-reinforcement, realistic assessment, number of losses, and a history of depression. These results suggest that battered women who realistically assess their battering relationship and who report poor self-reinforcement skills, losses, and histories of depression may be at particular risk for depression.     

Right ventricular damage due to pulmonary embolism: examination of the number of infiltrating macrophages

To investigate the pathological changes in the heart induced by pulmonary embolism, 20 autopsy cases of pulmonary embolism and 10 control cases of acute death from traumatic injury were examined. Adding to the routine hematoxylin-eosin (HE) staining, immunostaining with CD68 pan-macrophage marker was performed on the specimens obtained from both right and left ventricular walls. The number of macrophages was counted semi-quantitatively in 100 random high-power fields (HPF). Although typical pathological findings of myocardial infarction was not observed in any of the cases, 16 of the 20 pulmonary embolism cases showed an increase in the number of macrophages, mainly in the right ventricular wall. Four cases showed massive macrophage infiltration in the entire right ventricular wall. It is speculated that ischemia due to pulmonary embolism may be connected to its pathogenesis.