ULTRASONICALLY ASSISTED PREPARATION OF BIO-DIESEL FUEL AS CLEAN ENERGY FOR GLOBAL WARMING AND EMMISION OF FINE PARTICULATE MATTER

Joint Research on Environmental Science and Technology for the Eart

Road Environmental Design from Filed Study of "Shared Space"

In recent years, certain results of the safety and comfort of shared space have also been provided. In this research, we reanalyzed 10 cases of shared space of previous research. In the meantime, we also conducted field investigation of 5 cases of shared space and similar shared space in Japan, and conducted comparative study on the shared space both in Japan and abroad. We found that due to lack of instruction from signs and traffic light in the shared space, it will strengthen eye contact between pedestrians and users of vehicles, which can reduce the speed of vehicles. Secondly, the shared space at current stage is not completely shared, and some traditional measures are still used to limit the speed, such as the speed bumps, etc. In addition, the design of each segment of shared space should be consistent with the actual transportation situation of city. Last but not the least, by removing the signs, it can truly improve the comfort and strengthen the security of space. Based on the cases in Japan, we found that it could increase the comfort of road, and it was easier for pedestrians to pass by. Therefore, there is certain possibility to implement shared space in Japan.Art and Design Research for Sustainable Development ; September 22, 2018Conference: Tsukuba Global Science Week 2018Date: September 20-22, 2018Venue: Tsukuba International Congress Center Sponsored: University of Tsukub

The Friedmann Universe and Compact Internal Spaces in Higher-Dimensional Gravity Theories

We consider gravity theories in $4+N$ dimensions which are governed by the Lagrangian written as an extended Gauss-Bonnet density. We can find a naturally generalized Einstein gravity where the maximal symmetric compactification leads to vanishing four-dimensional cosmological constant in the static limit. A later stage in the generalized Kaluza-Klein cosmology is also examined.Comment: 8 pages, no figur

Atmospheric polycyclic aromatic hydrocarbons in air samples of Hanoi

Joint Research on Environmental Science and Technology for the Eart

Newly Synthesized Compound, PABA-Ursodeoxycholic Acid, for Evaluation of Intestinal Bacteria

From the standpoint of utilizing a distinctive feature of para-aminobenzoic acid (PABA) and intestinal bile acid metabolism, a conjugate of ursodeoxycholic acid with PABA (PABA-UDCA) was newly synthesized for studying whether it can be a good material or not to evaluate enteric bacteria. In incubation experiment, this compound was reasonably deconjugated by cholylglycine hydrolase resulting in the release of PABA. In animal experiment, urinary excretions of PABA were determined during six hours following oral administration of 10 mg PABA-UDCA. Control rats (n=7) excreted 140.1 ± 59.5 μ,g (mean ± SD) of PABA. By contrast, the rats (n=9) with intestinal antisepsis by antibiotic administration excreted less (18.3 ± 16. 7 μg; P < 0.001) whereas those with intestinal bacterial overgrowth by making enteric blind loop excreted more (451.1 ± 223.6 μg; P < 0.01). These observations indicate that this new compound is likely to offer a simple and rapid method for evaluation of the intestinal microorganisms

A Meta-Analysis of the Short- And Long-Term Results of Randomized Controlled Trials That Compared Laparoscopy-Assisted and Open Colectomy for Colon Cancer

Purpose: We conducted a meta-analysis to evaluate and compare the short- and long-term results of laparoscopy-assisted colectomy (LAC) and open colectomy (OC) for colon cancer

Characteristics of Physical Fitness and Motor Ability in Obese and Lean Child classified by Combining Somatotype, and Body Composition in Adolescence

The purpose of this study was to clarify physical fitness(PF) characteristics of obese and lean adolescent classified by combining somatotype, and body composition. Somatotype were measured by obesity index from weight and height measurement. Body composition given as percentage body fat was calculated by measuring skinfold thickness. The measurement of PF consisted of 12 tests. In addition, comparison were made in each somatotype group between the high percentage body fat group and the normal group. PF were lower in overweight or underweight group than in normalweight group. At overweight and normalweight groups, the high percentage body fat group attained scored lower in most PF test items. However, at underweight group, normal percentage body fat group attained scored lower in 6-7 items

Supernova Nucleosynthesis and Extremely Metal-Poor Stars

We investigate hydrodynamical and nucleosynthetic properties of the jet-induced explosion of a population III $40M_\odot$ star and compare the abundance patterns of the yields with those of the metal-poor stars. We conclude that (1) the ejection of Fe-peak products and the fallback of unprocessed materials can account for the abundance patterns of the extremely metal-poor (EMP) stars and that (2) the jet-induced explosion with different energy deposition rates can explain the diversity of the abundance patterns of the metal-poor stars. Furthermore, the abundance distribution after the explosion and the angular dependence of the yield are shown for the models with high and low energy deposition rates $\dot{E}_{\rm dep}=120\times10^{51} {\rm ergs s^{-1}}$ and $1.5\times10^{51} {\rm ergs s^{-1}}$. We also find that the peculiar abundance pattern of a Si-deficient metal-poor star HE 1424--0241 can be reproduced by the angle-delimited yield for $\theta=30^\circ-35^\circ$ of the model with $\dot{E}_{\rm dep}=120\times10^{51} {\rm ergs s^{-1}}$.Comment: 6 pages, 3 figures. To appear in "ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: From the Dawn of Universe to the Formation of Solar System", AIP Conf. Proc. 1016 (December 2007, Sapporo), eds. T. Suda, T. Nozawa, et al. (Melville: AIP