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排序方式: 共有576条查询结果,搜索用时 15 毫秒
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Using a new temperament inventory (the Japanese Temperament Questionnaire) developed from the free response of Japanese mothers asked to describe their infants' behavioral styles, mothers (N?=?469) rated behaviors observed in their 1-, 3-, or 6-mo-old baby. The ratings were factor analyzed and the dimensions generated by the factor analysis were labeled by an independent maternal group. Results support the conclusions that mothers' perceptions of infant temperament were both pancultural and culture specific. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
74.
Masato Takeuchi Junichi Deguchi Manabu Hidaka Shiro Sakai Kyoungja Woo Pyuck-Pa Choi Jong-Ku Park Masakazu Anpo 《Applied catalysis. B, Environmental》2009,89(3-4):406-410
The photocatalytic oxidation of gaseous acetaldehyde with O2 on commercial TiO2 nano-particles could be successfully enhanced by a simple mechanical blending with a high-silica mordenite (MOR) zeolite, the surface of which showed high hydrophobic properties. When the TiO2 nano-particles of ca. 5–20 wt% were mixed with the MOR zeolite powders in an agate mortar for only 5 min, the blended TiO2/MOR samples showed higher photocatalytic reactivity as compared to the pure TiO2 nano-particles. Since the high-silica zeolite powders are highly transparent in UV light regions, the incident UV light is effectively irradiated onto the whole part of the TiO2 nano-particles without any loss of light intensity. Furthermore, the siliceous MOR zeolite powders effectively adsorb the gaseous acetaldehyde molecules and supply them onto the surfaces of the blended TiO2 nano-particles, resulting in an enhancement of the photocatalytic reactivity. 相似文献
75.
Pseudomonas aeruginosa as a model microorganism for investigation of chemotactic behaviors in ecosystem 总被引:1,自引:0,他引:1
Kato J Kim HE Takiguchi N Kuroda A Ohtake H 《Journal of Bioscience and Bioengineering》2008,106(1):1-7
Motile bacteria sense changes in the concentration of chemicals in environments and respond in a behavioral manner. This behavioral response is called chemotaxis. Bacterial chemotaxis can be viewed as an important prelude to metabolism, prey-predator relationships, symbiosis, infections, and other ecological interactions in biological communities. Genome analysis reveals that a large number of environmental motile bacteria possess a number of genes involved in chemosensing and chemotatic signal transduction. Pseudomonas aeruginosa has a very complex chemosensory system with more than 20 chemotaxis (che) genes in five distinct clusters and 26 chemoreceptor (methyl-accepting chemotaxis protein [mcp]) genes. Among the 26 MCPs of P. aeruginosa, nine have been identified as MCPs for amino acids, inorganic phosphate, oxygen, ethylene, and volatile chlorinated aliphatic hydrocarbons, whereas 3 MCPs were demonstrated to be involved in biofilm formation and biosynthesis of type IV pilus. Six che genes are essential for chemotactic responses, while genes in Pil-Chp cluster and Wsp cluster are involved in type IV pilus synthesis and twitching motility and biofilm formation, respectively. P. aeruginosa, with its complex chemotaxis system, is a better model microorganism for investigating ecological aspects of chemotaxis in environmental bacteria than Escherichia coli and Salmonella enterica serovar Typhimurium, which possess a relatively simpler chemotaxis system. 相似文献
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77.
Hideo Yamauchi Junichi Ikejiri Fumio Sato Hiroyuki Oshita Tsuyoshi Honma Takayuki Komatsu 《Journal of the American Ceramic Society》2019,102(11):6658-6667
In recent years, the expansion of demand for lithium ion batteries has resulted in soaring prices of the constituent resources. From the viewpoint of safety, studies on all-solid-state batteries are actively being carried out. In this study, we succeeded in driving all-solid-state batteries derived from nontoxic oxide glasses at room temperature without requiring scarce resources such as lithium and cobalt. The main structure of the ceramic batteries with a simple structure in which Na2FeP2O7 crystallized glass and β″-alumina solid solution are joined by pressureless cofiring at 550°C. During the crystallization of Na2O-Fe2O3-P2O5 glass, fusion with the β″-alumina solid solution is achieved. Reversible charge and discharge of 80 mAh/g were achieved at room temperature. It is not necessary to apply pressure during cell preparation or the use of the batteries. Furthermore, the strong junction at the cathode and electrolyte interface does not peel off during charge and discharge over a long period of 623 cycles. Ex situ X-ray photoelectron spectroscopy revealed partial Fe4+ induction and a reversible charge and discharge reaction even after overcharging to 9 V. It was demonstrated that Na2FeP2O7 is very stable against overcharging to 9 V. 相似文献
78.
Nosal Briana M. Sakaki Junichi R. Kim Dae-Ok Chun Ock K. 《Food science and biotechnology》2022,31(8):1081-1088
Food Science and Biotechnology - Although coffee has been reported as a major contributor to antioxidants in the diet, there are limited studies assessing how brewing methods and types of coffee... 相似文献
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80.
Jianliang Deng Xiangxia Zhang Shuilong Shen Junichi Koseki 《Bulletin of Engineering Geology and the Environment》2018,77(3):931-939
To reproduce a subaqueous debris flow with a friction coefficient of approximately tan1° in field, material with a huge volume may be involved. In this research, a steady subaqueous debris flow with a friction coefficient of approximately tan1° was produced by using the rotating flume experiment apparatus (Debris Flow Maker, DFM) with only 40 g of silicon powder. Subsequently, the mechanism of the low friction coefficient was interpreted with the hypothesis of dense agglomeration hitting (DAH). DAH means hitting of the dense agglomeration of dense flow on the flume's bottom plane. The following issues on DAH are considered: (I) the high velocity of the flume's bottom plane induces a strong hitting of particles; (II) the hitting elevates the liquid pressure near the boundary between the agglomeration and the flume's bottom plane; (III) the energy loss due to collision inside the particle agglomeration is limited. The experimental results provide an alternative method of producing subaqueous debris flow and an alternative measurement method of its friction coefficient; the hypothesis provides an alternative interpretation on the mechanism of low friction coefficient of subaqueous debris flow. 相似文献