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Article
Study on Novel Topology of Solar–Wind Hybrid Power Plant Using Photovoltaic Cell Emulating System
At the present, the grid-tied solar power system is the most promising as a renewable energy technology for replacing the fossil energy sources. The usage efficiency of the power conditioner system in the grid...
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Article
Breeding migration and population stability
We have modeled habitat shift for reproduction to examine the relationship between the timing of migration and population stability, by modifying Takimoto’s (Am Nat 162:93–109, 2003) consumer–resource model wi...
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Article
Community structure and stability analysis for intraguild interactions among host, parasitoid, and predator
Intraguild predation (IGP) occurs when one species preys on a competitor species that shares a common resource. Modifying a prey–predator model with prey infection, we propose a model of IG interactions among ...
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Article
Relation between Ultrasonographic and Histologic Findings of Tracheal Invasion by Differentiated Thyroid Cancer
Between 1988 and 1999 a total of 24 patients with differentiated thyroid cancer invading the airway underwent various types of tracheal resection at the Osaka Police Hospital. Preoperative ultrasonographic (U...
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Article
A simple learning strategy that realizes robust cooperation better than Pavlov in Iterated Prisoners' Dilemma
Pavlov was proposed as a leading strategy for realizing cooperation because it dominates over a long period in evolutionary computer simulations of the Iterated Prisoners' Dilemma. However, our numerical calc...
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Article
Sympatric speciation by sexual selection
There is increasing evidence1,2,3,4,5,6 for the process of sympatric speciation7,8, in which reproductive isolation of species occurs without physical isolation. Theoretical models9,10,11,12,13,14 have focused on...
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Article
Changes in plasma and urinary 11-dehydrothromboxane B2 in healthy subjects produced by oral CS-518, a novel thromboxane synthase inhibitor
When 50 mg CS-518, a novel thromboxane (TX) A2 synthase inhibitor, was orally administered to healthy male volunteers, the plasma concentration of CS-518 peaked after 0.5 h and then decreased with a half-life of ...
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Article
Population regulation of a mosquitoArmigeres theobaldi with description of the animal fauna in zingiberaceous inflorescences
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Inflorescences of someCurcuma andZingiber (Zingiberaceae) in tropical Asia provide an unique aquatic habitat ...
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A mathematical approach to spatial distribution and temporal succession in plant communities
The Volterra equations which represent competitions between two species are utilized to examine the phenomenon of boundary formation between two species of plants. The set of stable stationary points for these...