102 research outputs found
A Bibliography of Ryuji Hattori, Japan at War and Peace:Shidehara Kijūrō and the Making of Modern Diplomacy(Canberra: Australian National University Press, 2021)
No full textapplication/pdfThe author recently published a book, Japan at War and Peace: Shidehara Kijūrō and the Making of
Modern Diplomacy (Canberra: Australian National University Press, 2021). It is open-access in multiple
formats at the URL https://press.anu.edu.au/publications/japan-war-and-peace. This book is based on
Ryuji Hattori, Zōhoban Shidehara Kijūrō: Gaikō to Minshushugi [Shidehara Kijūrō: Diplomacy and
Democracy, enlarged edition] (Tokyo: Yoshida Shoten, 2017). The English version was updated with a new
introduction and other information. However, due to the word limit, the bibliography was omitted.
Therefore, this paper provides that bibliography for the benefit of its readers.departmental bulletin pape
(Table 1) Grain size composition and age of ODP Hole 167-1017E sediments
No full textSiliciclastic sedimentation at Ocean Drilling Program Site 1017 on the southern slope of the Santa Lucia Bank, central California margin, responded closely to oceanographic and climatic change over the past ~130 ka. Variation in mean grain-size and sediment sorting within the ~25-m-thick succession from Hole 1017E show Milankovitch-band to submillenial-scale variation. Mean grain size of the "sortable silt" fraction (10-63 µm) ranges from 17.6 to 33.9 µm (average 24.8 µm) and is inversely correlated with the degree of sorting. Much of the sediment has a bimodal or trimodal grain-size distribution that is composed of distinct fine silt, coarse silt to fine sand, and clay-size components. The position of the mode and the sorting of each component changes through the succession, but the primary variation is in the presence or abundance of the coarse silt fraction that controls the overall mean grain size and sorting of the sample. The occurrence of the best-sorted, finest grained sediment at high stands of sea level (Holocene, marine isotope Substages 5c and 5e) reflect the linkage between global climate and the sedimentary record at Site 1017 and suggest that the efficiency of off-shelf transport is a key control of sedimentation on the Santa Lucia Slope. It is not clear what proportion of the variation in grain size and sorting may also be caused by variations in bottom current strength and in situ hydrodynamic sorting
Techniques used in the Crystallization of the Earth: The Ryuji Kitagawa Mineral Collection exhibit
No full text富山市科学博物館では，平成27年7月18日から9月6日まで特別展「地球の結晶～北川隆司鉱物コレクション～」を開催した．本展では，北川隆司氏のコレクションを中心に，色や結晶の美しい鉱物標本約300点と㈲J．C．BAR所有の宝石標本約100点を展示した．本展では，鉱物の色や結晶の形の美しさを伝えるとともに，鉱物の様々な楽しみ方を提案することを狙いとし展示を構成した．展示の構成・デザインには，（１）来場者に展示の意図が伝わること，（２）当館の来館者層（幼児～小学生＋その保護者）にあった内容であること，（３）特に鉱物に興味をもたない来場者でも楽しめる展示であることに注意した．
本展開催期間中，来場者に本展の感想を問うアンケートを実施した．その結果，印象に残った展示として「宝石」を筆頭に，「光る石や色が変わる石」「鉱物の色」「鉱物の形」と回答した方が多く，自由記述においても，「きれいだった」といった感想が多く見られ，本展の狙いは概ね達成したと言える．For exhibits held at museums, curators plan and create exhibits matched to the nature of the exhibit venue and the visitors expected, carefully structuring the exhibit to suit the museum in question. The standard theory of exhibits has been discussed in various literature, but there have been few elucidations of the subtle exhibition techniques employed by curators. From July 18, 2015 through September 6, 2015, the Toyama Science Museum held an exhibit entitled: Crystallization of the Earth: The Ryuji Kitagawa Mineral Collection. This paper explains the exhibitional techniques that the author did in the exhibition. Further, the results of a survey distributed to visitors are used to assess future issues surrounding how exhibition techniques are evaluated by the public.departmental bulletin pape
Voice Compression and Communications: Principles and Applications for Fixes and Wireless Channels
No full textUp-to-date, expert coverage of topics in wireless voice communications Voice communication is the most important facet of mobile radio service. Even when the predicted surge of wireless data and Internet services becomes a reality, voice will remain the most natural means of human communication. Voice Compression and Communications details issues in wireless voice communications and treats compression, channel coding, and wireless transmission as a joint subject. Part I covers background material, whereas Part II provides detailed information on both proprietary and standardized analysis-by-synthesis codecs, including the speech codecs of virtually all existing wireline-based and wireless systems. Parts III and IV discuss mainly research-based wideband, audio, as well as very low-rate schemes likely to find their way into future standards. Voice Compression and Communications describes fundamental concepts in a non-mathematical way early in the book for those with only a background knowledge of signal processing and communications. More advanced readers will find detailed discussions of theoretical principles, future concepts, and solutions to various specific wireless voice communications problems
Depth dependence and exponential models of permeability in alluvial-fan gravel deposits
No full textTo determine depth dependence of permeability in various geologic deposits, exponential models have often been proposed. However, spatial variability in hydraulic conductivity, K, rarely fits this trend in coarse alluvial aquifers, where complex stratigraphic sequences follow unique trends due to depositional and post-depositional processes. This paper analyzes K of alluvial-fan gravel deposits in several boreholes, and finds exponential decay in K with depth. Relatively undisturbed gravel cores obtained in the Toyohira River alluvial fan, Sapporo, Japan, are categorized by four levels of fine-sediment packing between gravel grains. Grain size is also analyzed in cores from two boreholes in the mid-fan and one in the fan-toe. Profiles of estimated conductivity, , are constructed from profiles of core properties through a well-defined relation between slug-test results and core properties. Errors in are eliminated by a moving-average method, and regression analysis provides the decay exponents of with depth. Moving-average results show a similar decreasing trend in only the mid-fan above 30-m depth, and the decay exponent is estimated as a parts per thousand 0.11 m(-1), which is 10- to 1,000-fold that in consolidated rocks. A longitudinal cross section is also generated by using the profiles to establish hydrogeologic boundaries in the fan
Object-based spatial attention when objects have sufficient depth cues
No full textAttention directed to a part of an object tends to obligatorily spread over all of the spatial regions that belong to the object, which may be critical for rapid object-recognition in cluttered visual scenes. Previous studies have generally used simple rectangles as objects and have shown that attention spreading is reflected by amplitude modulation in the posterior N1 component (150-200 ms poststimulus) of event-related potentials, while other interpretations (i.e., rectangular holes) may arise implicitly in early visual processing stages. By using modified Kanizsa-type stimuli that provided less ambiguity of depth ordering, the present study examined early event-related potential spatial-attention effects for connected and separated objects, both of which were perceived in front of (Experiment 1) and in back of (Experiment 2) the surroundings. Typical P1 (100-140 ms) and N1 (150-220 ms) attention effects of ERP in response to unilateral probes were observed in both experiments. Importantly, the P1 attention effect was decreased for connected objects compared to separated objects only in Experiment 1, and the typical object-based modulations of N1 were not observed in either experiment. These results suggest that spatial attention spreads over a figural object at earlier stages of processing than previously indicated, in three-dimensional visual scenes with multiple depth cues
Beak morphology and limb proportions as adaptations of hadrosaurid foraging ecology
No full textHadrosauridae, consisting of two subfamilies (Hadrosaurinae and Lambeosaurinae), is a successful her-bivorous dinosaur group that established a high taxonomic diversity and a cosmopolitan biogeographic distribution during the Late Cretaceous. While its success is often attributed to a highly specialized oral processing system, the foraging strategy of this group remains unclear. This study focuses on two critical factors in foraging strategy, food selectivity and locomotor ecology, in these hadrosaurid subfamilies. Three-dimensional beak shapes and limb segment proportions are used as the proxies for food selectivity and locomotor ecology, respectively. The beak shape analysis demonstrates trends of anteriorly acute beaks in hadrosaurines and anteriorly wide beaks in lambeosaurines. The limb segment proportion analysis shows short proximal limb segments in hadrosaurines and long proximal limb segments in lambeosaurines. These results suggest that hadrosaurines preferred selective consumption of high-quality food with energy -inefficient locomotor ecology, while lambeosaurines preferred mass consumption of low-quality food with energy-efficient locomotion and that differences in foraging strategy might have enhanced dietary niche partitioning in the subfamily level of hadrosaurids. In addition, this study tests a relationship between limb proportions and habitat environments in hadrosaurids. We demonstrate that hadrosaurids from the coastal environments have shorter forelimbs than those from the terrestrial environment. Since short forelimbs are better suited for temporal bipedalism than long forelimbs, the limb proportion difference may indicate adaptations to different feeding heights, possibly due to different regional vegetations.(c) 2022 Elsevier Ltd. All rights reserved
Time course of spatial and feature selective attention for partly-occluded objects
No full textAttention selects objects/groups as the most fundamental units, and this may be achieved by an attention-spreading mechanism. Previous event-related potential (ERP) studies have found that attention-spreading is reflected by a decrease in the N1 spatial attention effect. The present study tested whether the electrophysiological attention effect is associated with the perception of object unity or amodal completion through the use of partly-occluded objects. ERPs were recorded in 14 participants who were required to pay attention to their left or right visual field and to press a button for a target shape in the attended field. Bilateral stimuli were presented rapidly, and were separated, connected, or connected behind an occluder. Behavioral performance in the connected and occluded conditions was worse than that in the separated condition, indicating that attention spread over perceptual object representations after amodal completion. Consistently, the late N1 spatial attention effect (180-220 ms post-stimulus) and the early phase (230-280 ms) of feature selection effects (target N2) at contralateral sites decreased, equally for the occluded and connected conditions, while the attention effect in the early N1 latency (140-180 ms) shifted most positively for the occluded condition. These results suggest that perceptual organization processes for object recognition transiently modulate spatial and feature selection processes in the visual cortex
(Table 1) Distribution of calcareous nannofossils in ODP Hole 167-1017E sediments
No full textOcean Drilling Program (ODP) Site 1017E (34°32.10'N, 121°6.43'W; 955.5 m water depth) is located on Santa Lucia Slope, ~50 km west of Point Arguello. The location of Hole 1017E, influenced by the California Current and associated coastal upwelling systems, is the best field to monitor paleoclimate change in the North Pacific. Living coccolithophorid is generally restricted in the photic zone and is one of the major primary producers in modern oceans. Thus, fossil coccolith assemblages can be used for paleoceanographic reconstruction in the surface waters. Winter (1985, doi:10.1016/0377-8398(85)90007-6) reported that the living coccolithophore flora in the California Current system of Southern California has significant variability in community structure, diversity, and standing crop. Wei and Peleo-Alampay (1995, doi:10.2973/odp.proc.sr.146-2.305.1995) reported that nannofossil diversity is low during oxygen isotope Stages 1-6 in the Santa Barbara Basin. These studies indicate that the low temperature and upwelling in the California Current system are responsible for the dominance of nannofossil flora in the California Borderland. However, very little is known about the paleoceanographic interpretation of nannofossil flora off Point Conception. The purpose of this report is to document the change in calcareous nannofossil assemblages for the last 27 k.y. in relation to the past surface water conditions at Hole 1017E
Frailty and Herbal Medicines- From Molecular Mechanisms to Clinical Efficacy
No full textThis eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contac
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