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Article
Open AccessThe vomeronasal organ and incisive duct of harbor seals are modified to secrete acidic mucus into the nasal cavity
Most terrestrial mammals have a vomeronasal system to detect specific chemicals. The peripheral organ of this system is a vomeronasal organ (VNO) opening to the incisive duct, and its primary integrative cente...
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Chapter and Conference Paper
In-situ Casting Method and Durability of Cementitious Materials at Deep Seafloor
The utilization of cementitious materials in deep sea areas has been planned to construct the platforms for diastrophism monitoring, geoneutrino observation and offshore wind power generation. The authors have...
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Chapter
Fundamental Limits for ISAC: Information and Communication Theoretic Perspective
The integrated sensing and communication (ISAC) paradigm, where sensing and communication functions are synergistically implemented by possibly sharing the same frequency band and hardware, has emerged as one ...
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Article
Physicochemical properties of Portland cement/calcium aluminate cement/calcium sulfate ternary binder exposed to long-term deep-sea conditions
Cementitious materials employed in deep-sea marine engineering must have excellent durability and fast setting for in-situ construction. In this study, the durability of a ternary binder mortar composed of Por...
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Article
Correction to: Intraspecific differences in the diet of Kuril harbor seals (Phoca vitulina stejnegeri) in Erimo, Hokkaido, using DNA barcoding diet analysis
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Article
Intraspecific differences in the diet of Kuril harbor seals (Phoca vitulina stejnegeri) in Erimo, Hokkaido, using DNA barcoding diet analysis
Competition between Kuril harbor seals (Phoca vitulina stejnegeri) and salmon set-net fishing industries has become a serious problem with the recent increase in the number of seals in Erimo, Hokkaido, Japan. We ...
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Article
Distribution and abundance of dalli-type Dall’s porpoises Phocoenoides dalli migrating into waters off southeastern Hokkaido, Japan, during summer: results of 2014–2016 aerial surveys
A series of systematic aerial sighting surveys were conducted in the coastal waters off southeastern Hokkaido to reveal distribution patterns and estimate the abundance of Dall’s porpoises migrating into those...
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Article
Erratum to: Development of in vivo tissue-engineered microvascular grafts with an ultra small diameter of 0.6 mm (MicroBiotubes): acute phase evaluation by optical coherence tomography and magnetic resonance angiography
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Article
Development of in vivo tissue-engineered microvascular grafts with an ultra small diameter of 0.6 mm (MicroBiotubes): acute phase evaluation by optical coherence tomography and magnetic resonance angiography
Biotubes, i.e., in vivo tissue-engineered connective tubular tissues, are known to be effective as vascular replacement grafts with a diameter greater than several millimeters. However, the performance of biot...
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Chapter
The Paradigm Shift in Local Cultural Policy in Japan
In this chapter, I would like to discuss recent changes in local cultural policy in Japan. These changes have taken place within the context of administrative structural reforms that have progressed in a rapid...
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Article
Open AccessSecured Communication over Frequency-Selective Fading Channels: A Practical Vandermonde Precoding
We study the frequency-selective broadcast channel with confidential messages (BCC) where the transmitter sends a confidential message to receiver 1 and a common message to receivers 1 and 2. In the case of a ...
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Article
Open AccessA Low-Complexity Approach to Space-Time Coding for Multipath Fading Channels
We consider a single-carrier multiple-input single-output (MISO) wireless system where the transmitter is equipped with multiple antennas and the receiver has a single antenna. For this setting, we propose a s...
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Article
Dynamic Insertion–Deletion of Introns in Deuterostome EF-1α Genes
To test the validity of intron–exon structure as a phylogenetic marker, the intron–exon structure of EF-1α genes was investigated for starfish, acornworms, ascidians, larvaceans, and amphioxus and compared wi...
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Article
Dicyemids are higher animals
Dicyemids, which are microscopic parasites of squids and octopuses, have among the simplest body plans of all multicellular animals. They lack body cavities and almost all the organs that characterize animals,...
