Log in

Relevant bibliographies by topics / Ishigami / Journal articles

To see the other types of publications on this topic, follow the link: Ishigami.

Journal articles on the topic 'Ishigami'

Author: Grafiati

Published: 28 July 2024

Last updated: 30 July 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Ishigami.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Pramudita, Prathama Tryas, and Novi Andari. "Ideologi Kepemimpinan Senku Ishigami dalam Anime Dr.Stone Season 1 Episode 1-10 Karya Riichiro Inagaki." mezurashii 4, no. 2 (February 22, 2023): 141–58. http://dx.doi.org/10.30996/mezurashii.v4i2.8225.

Full text

Abstract:

Bahasa, Sastra, dan Ideologi adalah tiga istilah kata yang tidak dapat dipisahkan. Karya sastra apapun adalah merupakan produk bahasa. Konsep ideologi tidak hanya ada dalam kehidupan nyata, namun dapat direpresentasikan didalam karya sastra, salah satu contohnya adalah anime dari jepang yang berjudul Dr.Stone karya Riichiro Inagaki. Dalam serial anime Dr.Stone ini, terdapat unsur ideologi serta sifat kepemimpinan yang sangat ditonjolkan pada tokoh utama yang bernama Senku Ishigami. Tujuan dari penelitian ini untuk mengetahui sifat-sifat serta ideologi tokoh utama pada anime Dr.Stone. Metode yang digunakan adalah deskriptif kualitatif dengan pendekatan penelitian sosiologi sastra (politik kepemimpinan). Adapun data dalam bentuk dialog/subtitle yang mengandung unsur ideologi kepemimpinan diperoleh dengan cara melakukan simak catat waktu adegan lalu disusun sesuai kategori. Terdapat 4 data yang mewakili kategorisasi dari jumlah 14 data yang diperoleh pada serial anime Dr.Stone Season 1 Episode 1-10. Selanjutnya pada tahap analisis, data yang telah dikategorisasikan kemudian dijelaskan melalui poin-poin inti kalimat berdasarkan beberapa teori yang telah disebutkan. Setelah dianalisis, dapat ditarik kesimpulan sesuai dengan rumusan masalah bahwa Senku Ishigami selaku tokoh utama memiliki sifat kepemimpinan yaitu, cerdas, kedewasaan, dorongan motivasi, sikap hubungan kemanusiaan serta memiliki gaya kepemimpinan kharismatik. Adapun berdasarkan ideologi kepemimpinan, Senku Ishigami penganut jenis Ideologi Terbuka yaitu Ideologi Sosialisme. Kata Kunci: Karya Sastra, Anime, Ideologi, Sifat Kepemimpinan.

APA, Harvard, Vancouver, ISO, and other styles

2

ENACAR, Ayhan, and Mehmet ÖZGEN. "Ishigami Proksimal Kroşelerinin Ortodontik Apareylerde Uygulanması." Turkish Journal of Orthodontics 3, no. 2 (November 1990): 160–67. http://dx.doi.org/10.13076/1300-3550-3-2-160.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Castro Marcucci, Andrea, Daniel Belandria Gutiérrez, and María Verónica Machado. "La liquidez en las formas de la arquitectura japonesa contemporánea." MÓDULO ARQUITECTURA CUC 28 (December 21, 2021): 189–224. http://dx.doi.org/10.17981/mod.arq.cuc.28.1.2022.06.

Full text

Abstract:

El espacio arquitectónico de la contemporaneidad, específicamente en las primeras décadas del siglo XXI, ha buscado estrategias para acercarse a las dinámicas de la sociedad que la habita, catalogada por el sociólogo Zygmunt Bauman como líquida. El presente artículo tiene el propósito de evidenciar cómo la arquitectura de Junya Ishigami constituye una materialización tangible de la idea de liquidez en la arquitectura, convirtiéndose en referente para plasmar esta condición en el espacio habitable. El logro de este objetivo condujo a la investigación a traspasar referencias que transitan en la filosofía, como la apuesta de Bauman en la Modernidad Líquida. Estos planteamientos encuentran en los postulados del sociólogo, el fundamento necesario para explicar la impermanencia de la arquitectura a través de la liquidez. Las prácticas arquitectónicas de la postmodernidad muestran las fases germinales de lo que hoy puede conceptuarse como arquitectura y espacio líquido. Estas referencias y el análisis detallado de los proyectos de Ishigami: Table, Pabellón de la Bienal de Venecia y KAIT, demuestran que los aportes de su arquitectura a través de la indeterminación, la fluidez, la viscosidad, la transparencia y la tensión, constituyen las características fundamentales de un espacio líquido habitable.

APA, Harvard, Vancouver, ISO, and other styles

4

Miranda Berasategi, Olaia, and Oihana Garro Larrañaga. "Habitar el suelo. Aproximaciones estéticas hacia un habitar en relación." Papeles del CEIC 2019, no. 2 (September 30, 2019): 212. http://dx.doi.org/10.1387/pceic.20257.

Full text

Abstract:

Este texto analiza diferentes materializaciones arquitectónicas y escultóricas contemporáneas que se distinguen por un acercamiento relacional y contingente hacia todo aquello que nos rodea. Desde un acercamiento y articulación sensible hacia lo que coexiste, las configuraciones espaciales expuestas aquí son muestra de una manera de hacer, de una ética y una técnica, que tratan de habitar este mundo en relación. Eso es perceptible en el acercamiento y escucha hacia el entorno de la arquitectura de Junya Ishigami o en la configuración junto a las cosas de la escultura de suelo de Josu Bilbao. Son configuraciones estéticas que exponen, rescatando las palabras de Judith Butler, el carácter irremediablemente relacional y contingente de nuestra existencia. Y desde la interdependencia manifiesta hacia aquello que nos rodea y condiciona, estas configuraciones son ejemplo de lo que Adriana Cavarero propone como «geometría inclinada». Esta autora entiende por inclinación un acercarse que, asomándose fuera de sí, tiende al exterior, en manifiesta interdependencia estructural del sujeto hacia aquello con lo que coexiste. En este texto se expone esa geometría inclinada a través de las configuraciones espaciales de Junya Ishigami, Ryue Nishizawa, Gordon Matta-Clark y Josu Bilbao, como posibilidad de habitar un mundo inestable.

APA, Harvard, Vancouver, ISO, and other styles

5

KAWAMURA, Seishi, and Hidenori ONO. "THE AUTHOR' ANSWER TO DISCUSSION BY MR. SHINOBU ISHIGAMI(Shinobu ISHIGAMI, J. Struct. Constr. Eng. AIJ, No. 524, 149-150, Oct., 1999)." Journal of Structural and Construction Engineering (Transactions of AIJ) 64, no. 524 (1999): 151–52. http://dx.doi.org/10.3130/aijs.64.151_3.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Jorge Camacho, Cristina. "Land Art vs Landscape Architecture." Constelaciones. Revista de Arquitectura de la Universidad CEU San Pablo, no. 4 (May 1, 2016): 117–29. http://dx.doi.org/10.31921/constelaciones.n4a8.

Full text

Abstract:

La descripción de los fenómenos atmosféricos según los grados de intensidad –vientos escala Beaufort 0, 1, 2,…– y su representación mediante diagramas sirven para medir futuras contribuciones energéticas y prevenir sequías e inundaciones a través de programas de simulación meteorológica como Real Flow o Flow Design en el entorno BIM. Como antecedente en el control de estos parámetros, determinados videos de obras de Land Art muestran cómo la acción del viento, la lluvia o los relámpagos potencian los efectos del tiempo sobre dichas obras como Air Art. Actualmente estas mediciones se utilizan en sistemas cerrados como las instalaciones domésticas Interior Weather de Philippe Rahm o Rain de Junya Ishigami o en sistemas abiertos como las redes de instalaciones Infraestructural Urbanism de Stan Allen o Landscape Urbanism de James Corner.

APA, Harvard, Vancouver, ISO, and other styles

7

Bizzotto, Lucas. "Dimensiones temporales." PENSUM 8, no. 8 (June 13, 2022): 96–115. http://dx.doi.org/10.59047/2469.0724.v8.n8.34591.

Full text

Abstract:

El presente artículo tiene por objeto indagar acerca de las dimensiones temporales del espacio arquitectónico. El estudio se centra en la percepción corporal y se sustenta tanto en referencias teóricas disciplinares como en la transversalidad de éstas con discursos filosóficos de la fenomenología, principalmente los de Merleau-Ponty, y críticos, como los de Benjamin, Sennett y Virilio, quiénes desde diferentes órbitas y momentos manifiestan un paulatino empobrecimiento de la experiencia sensible. Se parte de la hipótesis de que las cualidades del espacio arquitectónico pueden alterar la percepción de las dimensiones temporales. Desde un plano metodológico, el trabajo se precisa como una reflexión teórica que apelará a un doble caso de estudio con cualidades fuertemente vinculadas a la temática: El Workshop y la Plaza del Kanagawa Institute of Technology (KAIT) proyectados por el estudio japonés Junya Ishigami + associates. De los resultados se desprende que la naturaleza del espacio arquitectónico puede provocar diferentes estados perceptivos y que la escala temporal, relación poco atendida en las investigaciones de arquitectura, es un atributo significativo que podría estimular el desarrollo del proceso proyectual.

APA, Harvard, Vancouver, ISO, and other styles

8

Juarranz, Ángela. "La naturaleza como experimento constructivo. El Pabellón de Japón para la XI Bienal de Venecia (Junya Ishigami, 2008)." Ra. Revista de Arquitectura 20 (2018): 192–203. http://dx.doi.org/10.15581/014.20.192-203.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Jatav, Narendra Kumar, Babu Lal, Satya Pal Singh, S. K. Bairwa, Ashok Kumar Meena, and R. S. Koli. "Evaluation of Plant Extracts against Wilt of Brinjal caused by Fusarium oxysporium f.sp. melongenae (Schlecht) Mutuo and Ishigami." International Journal of Current Microbiology and Applied Sciences 8, no. 12 (December 10, 2019): 2754–61. http://dx.doi.org/10.20546/ijcmas.2019.812.322.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Eggels, Anne, and Daan Crommelin. "Quantifying Data Dependencies with Rényi Mutual Information and Minimum Spanning Trees." Entropy 21, no. 2 (January 22, 2019): 100. http://dx.doi.org/10.3390/e21020100.

Full text

Abstract:

In this study, we present a novel method for quantifying dependencies in multivariate datasets, based on estimating the Rényi mutual information by minimum spanning trees (MSTs). The extent to which random variables are dependent is an important question, e.g., for uncertainty quantification and sensitivity analysis. The latter is closely related to the question how strongly dependent the output of, e.g., a computer simulation, is on the individual random input variables. To estimate the Rényi mutual information from data, we use a method due to Hero et al. that relies on computing minimum spanning trees (MSTs) of the data and uses the length of the MST in an estimator for the entropy. To reduce the computational cost of constructing the exact MST for large datasets, we explore methods to compute approximations to the exact MST, and find the multilevel approach introduced recently by Zhong et al. (2015) to be the most accurate. Because the MST computation does not require knowledge (or estimation) of the distributions, our methodology is well-suited for situations where only data are available. Furthermore, we show that, in the case where only the ranking of several dependencies is required rather than their exact value, it is not necessary to compute the Rényi divergence, but only an estimator derived from it. The main contributions of this paper are the introduction of this quantifier of dependency, as well as the novel combination of using approximate methods for MSTs with estimating the Rényi mutual information via MSTs. We applied our proposed method to an artificial test case based on the Ishigami function, as well as to a real-world test case involving an El Nino dataset.

APA, Harvard, Vancouver, ISO, and other styles

11

Yoshida, Masahiro, Yasushi Tsuji, Syutaro Oiwa, Toshizo Takayama, Naoka Okamura, Junko Sugiyama, Tetsuya Sumiyoshi, Michiaki Hirayama, Hitoshi Kondo, and Syunichi Okushiba. "Intraperitoneal chemotherapy for gastric cancer with peritoneal dissemination: A single center retrospective analysis of 82 cases." Journal of Clinical Oncology 36, no. 4_suppl (February 1, 2018): 170. http://dx.doi.org/10.1200/jco.2018.36.4_suppl.170.

Full text

Abstract:

170 Background: The prognosis of gastric cancer with peritoneal metastases remains dismal. Ishigami et al. have recently published a phase III study (PHOENIX-GC) aimed at clinical efficacy of intraperitoneal paclitaxel (PTX), which established intraperitoneal chemotherapy as a decent option for gastric cancer with peritoneal dissemination. According to this report, we have used various regimens of intraperitoneal chemotherapy, adjusted mainly based on previous treatments. Methods: Data from 82 patients with gastric cancer with peritoneal metastases who underwent intraperitoneal chemotherapy in our institute from February 2012 to July 2017 were retrospectively analyzed. The progression free survival (PFS), the overall survival (OS) and the 1-year survival rate were stratified by prior treatments. Results: Of the 82 patients, 38 (46.3%) were chemotherapy-naïve. The intraperitoneal regimens were assigned mainly according to the prior treatment: intraperitoneal PTX plus S-1/PTX was the most frequent (39 cases), followed by intraperitoneal PTX plus intravenous PTX (17 cases), intraperitoneal PTX only (6 cases), and the rest. The median PFS for the chemotherapy-naïve group and the previously treated group was 6.9 and 4.1 months, and the median OS was 12.8 and 7.9 months, and the 1-year survival rate was 72.2% and 34.4%, respectively. 10 patients (12.2%) achieved conversion surgery after confirmed complete response in the peritoneal metastases. Among these 10 patients, the median survival time is 22.7 months (7.6+-47.7). Adverse events were also analyzed for each regimen, as for intraperitoneal PTX plus S-1/PTX, leukopenia, neutropenia and anemia occurred frequently. All regimens were comprehensively tolerable, and there were no treatment-related deaths. Conclusions: Intraperitoneal chemotherapy is a promising and feasible option for gastric cancer with peritoneal dissemination. There were several cases with long-term prognosis where conversion surgery was achieved.

APA, Harvard, Vancouver, ISO, and other styles

12

Wan, Ledong, Kuan-Ting Lin, Mohammad A. Rahman, Yuma Ishigami, Alexander J. Kral, Dillon Voss, Zhikai Wang, et al. "Abstract C093: Dysregulated spliceosomal components promote pancreatic cancer progression." Cancer Research 84, no. 2_Supplement (January 16, 2024): C093. http://dx.doi.org/10.1158/1538-7445.panca2023-c093.

Full text

Abstract:

Abstract Dysregulated RNA splicing factors have been widely reported in tumorigenesis, but their involvement in pancreatic ductal adenocarcinoma (PDAC) is not well understood. We found that two proteins involved in different stages of spliceosome assembly contribute to PDAC tumorigenesis by regulating alternative splicing, either through direct or indirect interaction with RNA. First, we showed that the splicing factor SRSF1—an RNA-binding protein involved in early spliceosome assembly—can induce pancreatitis and accelerate KRASG12D-mediated PDAC by activating the MAPK pathway. Moreover, the expression of SRSF1 decreased in morphologically normal pancreatic cells expressing KRASG12D to maintain cellular homeostasis. Second, we found that breast cancer amplified sequence 2 (BCAS2, also known as SPF27)—a spliceosome scaffold protein associated with conformational changes—also contributes to PDAC progression. Although BCAS2 does not bind RNA directly, it can regulate alternative splicing events in a sequence-specific manner by promoting the usage of specific 5’ splice sites. BCAS2 promotes the inclusion of exon 21, which has a weak 5' splice site, in the SOS Ras/Rac Guanine Nucleotide Exchange Factor 1 (SOS1) pre-mRNA, resulting in a more oncogenic isoform. These studies not only improve our understanding of the oncogenic role of aberrant alternative splicing, but also provide insights into the mechanisms of alternative-splicing regulation at different stages of spliceosome assembly. Citation Format: Ledong Wan, Kuan-Ting Lin, Mohammad A. Rahman, Yuma Ishigami, Alexander J. Kral, Dillon Voss, Zhikai Wang, Mads A. Jensen, John E. Wilkinson, Youngkyu Park, David A. Tuveson, Adrian R. Krainer. Dysregulated spliceosomal components promote pancreatic cancer progression [abstract]. In: Proceedings of the AACR Special Conference in Cancer Research: Pancreatic Cancer; 2023 Sep 27-30; Boston, Massachusetts. Philadelphia (PA): AACR; Cancer Res 2024;84(2 Suppl):Abstract nr C093.

APA, Harvard, Vancouver, ISO, and other styles

13

Rao, V. Govardhan, S. R. Bhalerao, D. N. Dhutraj, K. T. Apet, C. V. Ambadkar, P. L. Sontakke, and A. G. Patil. "Investigation of Genetic Diversity in Fusarium Wilt of Egg Plant Caused by Fusarium oxysporum f.Sp. melangene (Schlecht) Mutuo and Ishigami in Marathwada Region of Maharastra, India." International Journal of Current Microbiology and Applied Sciences 8, no. 07 (July 10, 2019): 1079–93. http://dx.doi.org/10.20546/ijcmas.2019.807.129.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Feldzensztajn, Mateusz, and Adam Mazikowski. "Comparison of modelling and measurement results of spectra emitted by a programmable lamp." Photonics Letters of Poland 10, no. 2 (June 30, 2018): 42. http://dx.doi.org/10.4302/plp.v10i2.826.

Full text

Abstract:

Nowadays artificial light with optimized spectrum is used in many different applications. For instance, it is widely used in museums and exhibitions to illuminate the art. Moreover, such light stimulates the growth of plants, or can be applied in industry and healthcare. To achieve the best results for each application, adjusting of dedicated spectrum is required, that is a complicated task. The ongoing research is focused on simplifying this process. In this paper we present the developed lamp with programmable spectrum, and its user interface. Predicted and measured output spectra are investigated. Full Text: PDF ReferencesMottier, P., LEDs for Lighting Applications, Willey (2009) CrossRef Pimputkar, S., Speck, J.S., DenBaars, S.P., Nakamura, S., "Prospects for LED lighting", Nature photonics 3 (4), 180 (2009) CrossRef Knulst, A. J., Mooijweer, R., Jansen, F. W., Stassen, L. P., and Dankelman, J., "Indicating shortcomings in surgical lighting systems," Minim. Invasive Ther. Allied Technol. 20 (5), 267–275 (2011) CrossRef Blaszczak, U., Gryko, L., Palkowska, A., Kulesza, E., Zajac, A., "Color mixing in LED illuminating system for endoscopic purposes", Lighting Conference of the Visegrad Countries (Lumen), IEEE (17 November 2016) CrossRef Nanya, K., Ishigami, Y., Hikosaka, S., Goto, E., "Effects of blue and red light on stem elongation and flowering of tomato seedlings", Acta Hortic. 956, pp. 264–266 (2012). CrossRef Cegielski, T. , Bujalski, D. , Kowalczyk, K. , Gajc-Wolska, J. , Hemka, L., "Use of light emission programming in tomato grow light system", Proceedings of Electrotechnical Institute 63 (273), 79-94 (2016) CrossRef Mazikowski, A., Feldzensztajn, M., "Lamp of adjustable spectrum for photographic usage", Proc. SPIE 10445, Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments, 104450K (2017) CrossRef CREE Inc, Cree® XLamp® XT-E LEDs Product family data sheet (accessed 16 April 2018). DirectLink Dyble, M., Narendran, N., Bierman, A., Klein, T., "Impact of dimming white LEDs: chromaticity shifts due to different dimming methods", Optics and Photonics 2005, San Diego, California, United States DirectLink

APA, Harvard, Vancouver, ISO, and other styles

15

NIDAIRA, M., H. KYAN, K. TAIRA, S. OKANO, T. OSHIRO, T. KATO, N. KUDO, et al. "Survey of Japanese encephalitis virus in pigs and wild boars on Ishigaki and Iriomote Islands in Okinawa, Japan." Epidemiology and Infection 142, no. 4 (July 5, 2013): 856–60. http://dx.doi.org/10.1017/s0950268813001611.

Full text

Abstract:

SUMMARYWe previously revealed that Japanese encephalitis virus (JEV) seroprevalence was 4·5% in pigs on Ishigaki Island from 2005 to 2007. However, a partial E gene sequence (151 bp) of the JEV genome (JEV/sw/Ishigaki/1/2005) was detected in one pig. Phylogenetic analysis showed that JEV/sw/Ishigaki/1/2005 belonged to genotype III and to the same lineages isolated in Taiwan from 2006 to 2008. Serum samples were collected from 128 pigs on Ishigaki from 2009 to 2010, 24 wild boars on Ishigaki from 2008 to 2010, and 117 wild boars on Iriomote Island from 2008 to 2010. Four (3·1%) pigs on Ishigaki were positive for JEV antibody, but all wild boars on the island were negative. Fifty-two (44·4%) wild boars on Iriomote were positive for JEV antibody, in contrast to a seroprevalence of 3·7% in 2000 and 2004. JEV on Iriomote and/or in Taiwan might be related to transmission on Ishigaki.

APA, Harvard, Vancouver, ISO, and other styles

16

ONOYE, Takao. "Ishigaki Report." IEICE ESS FUNDAMENTALS REVIEW 4, no. 2 (2010): 166–68. http://dx.doi.org/10.1587/essfr.4.166.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Seo, Mitsuki, Danyao Du, Yohei Katsuyama, Ryo Katsuta, Arata Yajima, Tomoo Nukada, Yasuo Ohnishi, and Ken Ishigami. "Enantioselective synthesis and stereochemical determination of the highly reduced polyketide ishigamide." Bioscience, Biotechnology, and Biochemistry 85, no. 1 (January 2021): 148–53. http://dx.doi.org/10.1093/bbb/zbaa023.

Full text

Abstract:

Abstract Ishigamide was isolated as a metabolite of a recombinant strain of Streptomyces sp. MSC090213JE08 and its unsaturated fatty acid moiety has been confirmed in vitro to be synthesized by a type II PKS. Biosynthesis of such a highly reduced polyketide by a type II PKS is worthy of note. However, absolute configuration of ishigamide remained unknown. (R)-Ishigamide was synthesized enantioselectively employing Stille coupling and Wittig reaction between three units, vinyl iodide, stannyldienal, and Wittig salt. Stereochemistry of natural ishigamide was determined to be R by chiral HPLC analysis comparing with the synthesized standard.

APA, Harvard, Vancouver, ISO, and other styles

18

Hideshima, Shinichiro, Eiji Matsumoto, Osamu Abe, and Hiroyuki Kitagawa. "Northwest Pacific Marine Reservoir Correction Estimated from Annually Banded Coral from Ishigaki Island, Southern Japan." Radiocarbon 43, no. 2A (2001): 473–76. http://dx.doi.org/10.1017/s0033822200038352.

Full text

Abstract:

We assessed marine reservoir age R(t) for the costal area of the northwest Pacific using radiocarbon measurements of the annually banded coral core (Porites sp) collected on Ishigaki Island in southern Japan. Reservoir age R(t) during the early 1900s at the Pacific coast of Ishigaki Island ranged between 290 and 455 14C yr, with a weighted mean of 355 ± 25 14C yr (n=5, ±1 σ). The regional-specific ΔR, defined as 14C age difference of regional and world ocean surface layer, was 35 ± 25 14C yr (n=5, ±1σ) on average and increased between 1900 and 1950.

APA, Harvard, Vancouver, ISO, and other styles

19

Matsumoto, T., M. Kimura, M. Nakamura, and T. Ono. "Large-scale slope failure and active erosion occurring in the southwest Ryukyu fore-arc area." Natural Hazards and Earth System Sciences 1, no. 4 (December 31, 2001): 203–11. http://dx.doi.org/10.5194/nhess-1-203-2001.

Full text

Abstract:

Abstract. The southwestern Ryukyu area east of Taiwan Island is an arcuate boundary between Philippine Sea Plate and Eurasian Plate. The topographic features in the area are characterised by (1) a large-scale amphitheatre off Ishigaki Island, just on the estimated epicentre of the tsunamigenic earthquake in 1771, (2) lots of deep sea canyons located north of the amphitheatre, (3) 15–20 km wide fore-arc basin, (4) 15–20 km wide flat plane in the axial area of the trench, (5) E-W trending half grabens located on the fore-arc area, etc., which were revealed by several recent topographic survey expeditions. The diving survey by SHINKAI6500 in the fore-arc area on a spur located 120 km south of Ishigaki Island was carried out in 1992. The site is characterised dominantly by rough topography consisting of a series of steep slopes and escarpments. A part of the surface is eroded due to the weight of the sediment itself and consequently the basement layer is exposed. The site was covered with suspended particles during the diving, due to the present surface sliding and erosion. The same site was resurveyed in 1997 by ROV KAIKO, which confirmed the continuous slope failure taking place in the site. Another example that was observed by KAIKO expedition in 1997 is a largescale mud block on the southward dipping slope 80 km south of Ishigaki Island. This is apparently derived from the shallower part of the steep slope on the southern edge of the fan deposit south of Ishigaki Island. The topographic features suggest N-S or NE-SW tensional stress over the whole study area. In this sense, the relative motion between the two plates in this area is oblique to the plate boundary. So, the seaward migration of the plate boundary may occur due to the gravitational instability at the boundary of the two different lithospheric structures. This is evidenced by a lack of accretionary sediment on the fore-arc and the mechanism of a recent earthquake which occurred on 3 May 1998 in the Philippine Sea Plate 250 km SSE of Ishigaki Island.

APA, Harvard, Vancouver, ISO, and other styles

20

Kanke, Emi, Kohei Suzuki, Kazuki Sekiné, Tomoya Suzuki, Kokichi Hatta, Man-Miao Yang, and Koji Tojo. "Unexpected population genetic structure in two closely related euphaeid damselflies from the Yaeyama and Taiwan Islands (Odonata: Euphaeidae)." Biological Journal of the Linnean Society 134, no. 1 (May 22, 2021): 214–28. http://dx.doi.org/10.1093/biolinnean/blab061.

Full text

Abstract:

Abstract In general, population genetics theory predicts that a fragmented smaller population will contain relatively less genetic diversity than a larger population, and so will have a higher rate of genetic fixation due to random genetic drift or inbreeding. However, in this study, having analysed the genetic structure of the mitochondrial DNA COI region between two closely related euphaeid damselflies, we obtained unexpected results which contradict the theoretically expected patterns. Despite their geographical proximity, Euphaea yayeyamana was clearly genetically isolated on Ishigaki and Iriomote Islands, and no haplotype crossovers were observed. Even within each island, several diverse haplotypes were observed, indicating a significantly high haplotype intra-island diversity. However, the genetic diversity within Taiwan’s population of Euphaea formosa was significantly lower than that within either Ishigaki or Iriomote Island, even though Taiwan is significantly larger, with high mountain ranges that reach c. 4000 m a.s.l. and an abundance of habitats, all factors that should contribute to high genetic diversity. The current low diversity status for Taiwan’s population may be due to genetic bottleneck effects. In contrast, despite the very small population sizes of Ishigaki and Iriomote Islands coupled with the effects of glacial and interglacial geological events, they have maintained markedly high genetic diversity.

APA, Harvard, Vancouver, ISO, and other styles

21

Patani, Rickie. "The FUS about SFPQ in FTLD spectrum disorders." Brain 143, no. 8 (August 1, 2020): 2330–32. http://dx.doi.org/10.1093/brain/awaa207.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Taki, Yuto, Christian E. Vincenot, Yu Sato, and Miho Inoue-Murayama. "Genetic diversity and population structure in the Ryukyu flying fox inferred from remote sampling in the Yaeyama archipelago." PLOS ONE 16, no. 3 (March 18, 2021): e0248672. http://dx.doi.org/10.1371/journal.pone.0248672.

Full text

Abstract:

The Ryukyu flying fox (Pteropus dasymallus) is distributed throughout the island chain spanning across southern Japan, Taiwan, and possibly the Philippines. AlthoughP.dasymallusis listed as VU (vulnerable) in the IUCN Red List, only few genetic works have been conducted to support its conservation. In this study we analyzed 19 markers (mtDNA haplotypes and 18 microsatellite markers) to evaluate genetic diversity and investigate the genetic structure of this species. mtDNA analysis was conducted with 142 DNA remote samples, mostly from faeces, and wing tissues collected on eight islands (Miyako, Ishigaki, Kohama, Kuroshima, Hateruma, Taketomi, Iriomote, Yonaguni). 39 haplotypes were identified in 526bp of the control region, and haplotype network showed no clear genetic structure. Microsatellite analysis was also conducted with 155 samples collected on six islands (Miyako, Ishigaki, Kohama, Taketomi, Iriomote, Yonaguni). It showed that the Yonaguni population exhibits low genetic diversity, high inbreeding, and clear genetic differentiation from other populations. Gene flow between Ishigaki and Miyako through small stepstone islands might be preventing inbreeding of the Miyako population. We provide for the first time indirect proof of long-distance inter-island dispersal in the Ryukyu flying fox and revealed genetic diversity, gene flow and genetic differentiation among the archipelago’s populations. These results will be useful for delineating conservation units and designing specific conservation policies for each island based on metapopulation genetic structure.

APA, Harvard, Vancouver, ISO, and other styles

23

Ishigaki, Kenji. "Uniqueness of "us" created by physical education." Impact 2022, no. 5 (October 13, 2022): 26–27. http://dx.doi.org/10.21820/23987073.2022.5.26.

Full text

Abstract:

The concept of intercorporeality refers to a fundamental function of an individual’s body that enables them to be or feel interconnected with other human beings. Researchers at the Department of Sport and Health Science, Tokai Gakuen University, Japan, led by Professor Kenji Ishigaki are exploring whether intercorporeality can help inform the physical education, play and sports included in the school curriculum. They hope that by encouraging ‘corporeal feeling’ towards others, children can gain a better sense of morality and belonging. This, in turn, can improve mental health and engagement with physical education. Ishigaki believes that the intercorporeal approach will reveal what kind of exercise play will contribute to the development of children’s morality or what kind of ‘corporeal feeling’ is important for the children’s body. The expectation is that philosophical analysis of these ‘corporeal feelings’ will shed light on the types of exercise, play and sports that should be arranged and incorporated into the Japanese school curriculum. An important idea for Ishigaki and the team is that when we think in the same way as others do about a particular thing, an intersubjective ‘we’ is established but in practising physical education and exercise in sports, a different kind of ‘we’ is established. This is the the intercorporeal ‘we’ as corporeal feeling that is unknowingly generated in the dimension of the human body,’

APA, Harvard, Vancouver, ISO, and other styles

24

Topping, Matthew W. "“Words That Open Your Heart”—Overcoming Social Barriers to Heritage Language Reclamation in Ishigaki City." Languages 8, no. 1 (December 21, 2022): 5. http://dx.doi.org/10.3390/languages8010005.

Full text

Abstract:

Ishigaki Yaeyaman, a heavily minoritized Southern Ryukyuan language, is not a language of commerce, education, media, or government validated by the socioeconomic center. Nevertheless, it holds a certain value for a group of people in Ishigaki City that is intangible and deeply personal. In keeping with the goal of this special issue—to step out of the established dichotomies that impede the vision and practice of Ryukyuan language learning—this work sheds light on the ideologies and practices of new speakers of Ishigaki Yaeyaman, who traverse a ‘third space’ in their use of the language between public-and-private, polite-and-rude, spoken-and-written, and Japanese-and-Ryukyuan. It builds on the author’s findings, including field observations made during doctoral research at University of the Ryukyus. A participatory action research methodology is employed, drawing upon qualitative data from semi-structured personal interviews and the in-person observation of Master–Apprentice language learning sessions within a local grassroots initiative begun in December 2019. The analysis suggests a need to break away from the dichotomies dictating the environment and situations in which new speakers may interact with traditional speakers and among themselves. This is recommended to take the form of Master–Apprentice training in a context that encourages the transformation of language attitudes and awareness, creating a ‘safe space’ that is dialogic, collaborative, and transdisciplinary.

APA, Harvard, Vancouver, ISO, and other styles

25

Takekuro, Makiko. "Language and Gesture on Ishigaki Island." Annual Meeting of the Berkeley Linguistics Society 33, no. 1 (November 5, 2007): 412. http://dx.doi.org/10.3765/bls.v33i1.3544.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Kumagai, Yuho, Norihiro Nakamura, Tetsuro Sato, Toshitaka Oka, and Hirokuni Oda. "Ferromagnetic Resonance Spectroscopy and Rock Magnetic Characterization of Fossil Coral Skeletons in Ishigaki Islands, Japan." Geosciences 8, no. 11 (November 2, 2018): 400. http://dx.doi.org/10.3390/geosciences8110400.

Full text

Abstract:

Skeletons of hermatypic corals (e.g., Porites) might have enormous potential as a high-resolution paleomagnetic recorder owing to their rapid and continuous growth over hundreds of years at a rate of up to 2 cm/year, although typical corals show an extremely weak intensity of remanence and low stability. We found that coral tsunami boulders with negligible amounts of calcite on Ishigaki Island show a measurable intensity of remanence; thus, we attempted to characterize the magnetic assemblages in this coral skeleton to determine whether it is of biogenic or detrital magnetite using first-order reversal curve (FORC) measurements, ferromagnetic resonance (FMR) spectroscopy, and petrological observations through field-emission type scanning electron microscope (FE-SEM) with an acid treatment. The FMR derivative spectra of coral skeleton samples represent multiple derivative maxima and extended low-field absorption, indicating the presence of intact biogenic magnetite chains. FORC diagrams represent a “central ridge” signature with a vertical spread. These FMR and FORC features indicate the magnetization of these coral skeletons that are mainly created using intact biogenic magnetites and mixtures of grains from collapsed biogenic magnetites, pseudo-single domain grains, and multi-domain grains such as detrital magnetite. FE-SEM observations confirm the presence of a chain-like structure of iron oxides corresponding to the features of biogenic magnetite. Therefore, the magnetic mineral assemblage in coralline boulders from Ishigaki Island consists of dominant biogenic-origin single-domain magnetite and a trace amount of detrital component, indicating that fossil coral skeletons in Ishigaki Island have potential for utilization in paleomagnetic studies.

APA, Harvard, Vancouver, ISO, and other styles

27

NUONG, N. D., T. ITAYA, and Y. NISHIMURA. "Age (K–Ar phengite)–temperature–structure relations: a case study from the Ishigaki high-pressure schist belt, southern Ryukyu Arc, Japan." Geological Magazine 145, no. 5 (July 22, 2008): 677–84. http://dx.doi.org/10.1017/s0016756808004998.

Full text

Abstract:

AbstractThe Ishigaki high-pressure schist belt in the southern Ryukyu Arc is correlated with the Suo high-pressure schist belt in southwest Japan. The former metamorphic sequence is composed mainly of basic and pelitic schists and is subdivided into three zones, the lower-grade zone A, the medium-grade zone B and the high-grade zone C, based on the mineral assemblages of the basic schists. The K–Ar phengite age gives 188–205 Ma for zone A, 196–206 Ma for zone B and 208–220 Ma for zone C, while the apparent d002 spacing of carbonaceous materials is 3.590–3.437 Å, 3.415–3.390 Å and 3.387–3.364 Å, respectively. The age–d002 relationships suggest that the ages become older with increasing metamorphic temperature. This positive age–temperature relationship in the Ishigaki area contrasts with a negative relationship in the Nishiki area in the Suo belt. The two areas also display a contrasting thermal structure with the former area having an inverted metamorphic gradient and the latter displaying a normal thermal structure. These contrasting age–temperature–structure relationships in the metamorphic belt could be due to different tectonic styles relating to the exhumation of the metamorphic sequences. We suggest that the ages obtained are related directly to the ductile deformation history of the matrix phengite below the closure temperature (500°C) during exhumation of the host rocks. The duration from the beginning of exhumation to the apparent resetting of the phengite K–Ar system was different between the two metamorphic sequences, and significantly longer in the Ishigaki than the Nishiki.

APA, Harvard, Vancouver, ISO, and other styles

28

PHAM, NHI THI, MASATO ITO, RIKIO MATSUMOTO, and KEES VAN ACHTERBERG. "Two new species of the genus Ishigakia (Hymenoptera: Ichneumonidae, Acaenitinae) from Vietnam based on morphological and molecular evidence." Zootaxa 4442, no. 4 (July 3, 2018): 539. http://dx.doi.org/10.11646/zootaxa.4442.4.3.

Full text

Abstract:

The genus Ishigakia is reported from Vietnam for the first time, and two new species (I. babeensis sp. nov. and I. duongi sp. nov.) are described from Northeast Vietnam using morphological and genetic data. These new species are also inserted in the key to world species of Ishigakia provided by Ito & Maeto (2016).

APA, Harvard, Vancouver, ISO, and other styles

29

JAŁOSZYŃSKI, PAWEŁ. "Three new species of Pseudoceraphron from Japan and New Zealand (Hymenoptera: Chalcidoidea: Pteromalidae)." Zootaxa 4810, no. 3 (July 13, 2020): 546–58. http://dx.doi.org/10.11646/zootaxa.4810.3.10.

Full text

Abstract:

The leaf-litter-inhabiting diparine genus Pseudoceraphron Dodd (Hymenoptera: Pteromalidae) is for the first time recorded to occur in the Northern Hemisphere (Japan) and is confirmed from New Zealand. Pseudoceraphron belissimus sp. n. (Japan: Ishigaki-jima), P. zealandicus sp. n., and P. kepanus sp. n. (both New Zealand: Northern Island) are described.

APA, Harvard, Vancouver, ISO, and other styles

30

MATSUSHIMA, RYOSUKE. "First report of the genus Thirumalaia Zettel & Laciny, 2021 (Hemiptera: Veliidae) in the Ryukyu Islands, Japan, with the description of a new species." Zootaxa 5138, no. 3 (May 18, 2022): 339–46. http://dx.doi.org/10.11646/zootaxa.5138.3.7.

Full text

Abstract:

The genus Thirumalaia Zettel & Laciny, 2021 (Veliidae: Microveliinae) was recently established with one Indian species. Here, a new species, T. kaara sp. nov., from Ishigaki-jima Island and Iriomote-jima Island, Ryukyu, Japan is described. Additionally, the distribution of the genus is updated and laboratory rearing information of the immature stages of T. kaara sp. nov. are provided.

APA, Harvard, Vancouver, ISO, and other styles

31

JAŁOSZYŃSKI, PAWEŁ. "New species and new records of Eastern Palaearctic Stenichnus Thomson (Coleoptera, Staphylinidae, Scydmaeninae)." Zootaxa 5318, no. 3 (July 20, 2023): 363–81. http://dx.doi.org/10.11646/zootaxa.5318.3.3.

Full text

Abstract:

Two new scydmaenine species are described based on specimens collected in Taiwan: Stenichnus (s. str.) bifurcatus sp. n., and Stenichnus (s. str.) totoroides sp. n. New records are provided for Stenichnus totoro Jałoszyński (Japan: Iriomote-jima and Ishigaki-jima), S. bellulus Jałoszyński (Taiwan; Japan: Iriomote-jima, Ishigaki-jima, and for the first time recorded from Yonaguni-jima), S. taiwanicus Franz (Taiwan), S. bicolor (Denny) (Europe, Mongolia, Siberia, Russian Far East, and for the first time recorded from Japan: Iwate Prefecture), S. dividus Kurbatov (Russian Far East; for the first time recorded from Japan: Fukushima Prefecture), S. lackneri Jałoszyński (Japan: Tokunoshima, and for the first time recorded from Amami-Ôshima and Okinawa-jima), S. pollens (Sharp) (Japan: Kyushu, and for the first time recorded from Honshu), S. minipollens Jałoszyński (Japan: Hokkaido, and for the first time recorded from Kyushu and Shikoku), and S. saltuarius Kurbatov (Russian Far East; for the first time recorded from China: Heilongjiang Province). Moreover, records of six undescribed Japanese species of Stenichnus known from females are given, to facilitate future study on the still poorly known diversity of this genus in Eastern Palaearctic. Stenichnus dividus and S. saltuarius are placed in the nominotypical subgenus.

APA, Harvard, Vancouver, ISO, and other styles

32

JAŁOSZYŃSKI, PAWEŁ. "Two new species of Nogunius Jałoszyński in Taiwan (Coleoptera: Staphylinidae: Scydmaeninae)." Zootaxa 5437, no. 3 (April 15, 2024): 441–47. http://dx.doi.org/10.11646/zootaxa.5437.3.9.

Full text

Abstract:

The genus Nogunius Jałoszyński so far includes five species distributed exclusively in Japan: N. aogashimanus Jałoszyński (Aogashima, Izu Islands), N. fukuuzanus Jałoszyński (Okinawa Island), N. kerri Jałoszyński (Ishigaki Island), N. sokani Jałoszyński (Okinawa Island), and N. sagaensis Jałoszyński & Nomura (Kyushu). A discovery of Nogunius in Taiwan is reported in the present study, with descriptions of two species: N. microtaiwanensis sp. n., and N. infuscus sp. n.

APA, Harvard, Vancouver, ISO, and other styles

33

Tanaka, Katsuhiko. "A new species of Gnathia (Isopoda: Cymothoida: Gnathiidae) from Ishigaki Island, the Ryukyus, southwestern Japan." Crustacean Research 33 (2004): 51–60. http://dx.doi.org/10.18353/crustacea.33.0_51.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

ARAI, W. Sachiho, and Junji NAGATA. "Stagnant Land Improvement Project on Ishigaki Island, Okinawa." Geographical Review of Japan 79, no. 4 (2006): 129–53. http://dx.doi.org/10.4157/grj.79.4_129.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Chou, Chang-Hung, Yu-Chung Chiang, and Tzen-Yuh Chiang. "Genetic variability and phytogeography of Miscanthus sinensis var. condensatus, an apomictic grass, based on RAPD fingerprints." Canadian Journal of Botany 78, no. 10 (October 1, 2000): 1262–68. http://dx.doi.org/10.1139/b00-102.

Full text

Abstract:

DNA fingerprinting using random amplified polymorphic DNA (RAPD) markers was employed to investigate the genetic variation within and among populations of Miscanthus Anderss. sinensis var. condensatus (Hack.) Makino, an apomictic grass distributed along the coasts of Taiwan and Ryukyu Islands. A total of 250 plants from three Taiwanese populations (Southeast Coast, Orchid Islet, and Green Islet) and two populations from Ryukyu (Ishigaki and Amami-O-Shima Islets) were sampled. The amplified products of 40 random primers showed monomorphic banding patterns within all populations as well as among the three populations from Taiwan. Low genetic variation (with only two polymorphic loci), but significant differentiation, was detected between populations from Taiwan and Ryukyu (ΦCT = 0.864) and between populations (ΦST = 1.0) from Ishigaki and Amami-O-Shima Islets. In contrast, a high level of variation was exhibited in the outcrossing Miscanthus sinensis var. glaber (Nakai) Li. In addition to apomictic reproduction, low genetic variation across populations of M. sinensis var. condensatus may be a result of high salinity acting as a selective agent. With the cost of reduced genetic heterogeneity, apomixis may have provided a mechanism for avoiding the transmission of endophytic fungi. The phytogeographic pattern of M. sinensis var. condensatus, as reflected by the RAPD data, likely represents isolation between Taiwan and Ryukyu since the mid-Pleistocene.Key words: apomixis, Miscanthus sinensis var. condensatus, phytogeography, population differentiation, RAPD, system of mating.

APA, Harvard, Vancouver, ISO, and other styles

36

Rao, U. S., and R. C. Chaturvedi. "Sheet Metal Forming Limits Under Complex Strain Paths Using Void Growth and Coalescence Model." Journal of Engineering Materials and Technology 108, no. 3 (July 1, 1986): 240–44. http://dx.doi.org/10.1115/1.3225875.

Full text

Abstract:

It is well established that ductile fracture occurs by nucleation, growth and coalescence of voids. Several models have been developed to predict limits under constant strain ratio paths considering void inhomogeneity and void growth. In this paper the void growth and coalescence model developed by Rao and Chaturvedi for predicting forming limits under constant strain ratio paths, has been extended for predicting forming limits under two stage strain paths. The predicted results have been compared with experimental results of Ishigaki and analyzed.

APA, Harvard, Vancouver, ISO, and other styles

37

ITO, TOMIKO, and AYUKO OHKAWA. "The genus Ugandatrichia Mosely (Trichoptera, Hydroptilidae) in Japan." Zootaxa 3394, no. 1 (July 20, 2012): 48. http://dx.doi.org/10.11646/zootaxa.3394.1.5.

Full text

Abstract:

The tropical-subtropical caddisfly genus Ugandatrichia Mosely (Hydroptilidae) is recorded from Japan for the first time,with 2 species. Ugandatrichia nakijinensis Ito sp. nov. is described from Okinawa-jima and Amami-oshima, in the southof Japan, based on adults and immature stages. Ugandatrichia taiwanensis Hsu and Chen, originally described fromTaiwan, is recorded and redescribed based on material from Iriomote-jima and Ishigaki-jima, in the southernmost part of Japan. Larvae of both live on smooth rock surfaces in very fast flowing waters.

APA, Harvard, Vancouver, ISO, and other styles

38

JAŁOSZYŃSKI, PAWEŁ. "Paraneseuthia Franz of Japan: two new species and rediscovery of the enigmatic P. holzneri Franz (Coleoptera, Staphylinidae, Scydmaeninae)." Zootaxa 4532, no. 2 (December 18, 2018): 266. http://dx.doi.org/10.11646/zootaxa.4532.2.6.

Full text

Abstract:

To date, three nominal species of the eutheiine genus Paraneseuthia were known to occur in Japan (in Honshū and Kyūshū). A female of an undescribed species was also recorded from Iriomote Island of the Ryūkyū Archipelago. Two new species are here added to this list: P. ishigakianas p. n. (Ishigaki Is.) and P. ehimensis sp. n. (Shikoku). Paraneseuthia holzneri (Franz), described on the basis of a single male with erected and distorted aedeagus, is recorded from a new locality and its aedeagus is illustrated.

APA, Harvard, Vancouver, ISO, and other styles

39

SUENAGA, HARUKI. "Two new species of Clavicornaltica Scherer (Coleoptera, Chrysomelidae, Galerucinae) from the Ryukyu Islands, Southwestern Japan, with a redescription of C. sakishimana Suenaga and Yoshida." Zootaxa 5301, no. 4 (June 13, 2023): 447–60. http://dx.doi.org/10.11646/zootaxa.5301.4.3.

Full text

Abstract:

Two new flea beetles living in leaf litter, Clavicornaltica tokushigei sp. nov. from Okinawa-jima I. and C. nakanoi sp. nov. from Ishigaki-jima I., Iriomote-jima I., and Yonaguni-jima I. are described and illustrated. Clavicornaltica sakishimana Suenaga and Yoshida, 2016 is redescribed including description and illustration of female genitalia. A key to the species distributed in the Ryukyu Is., Japan is provided. The biology of C. nakanoi sp. nov. is noted with the ecological photograph for the first time in this genus.

APA, Harvard, Vancouver, ISO, and other styles

40

Inoue, Jun, Kanako Hisata, Nina Yasuda, and Noriyuki Satoh. "An Investigation into the Genetic History of Japanese Populations of Three Starfish, Acanthaster planci, Linckia laevigata, and Asterias amurensis, Based on Complete Mitochondrial DNA Sequences." G3: Genes|Genomes|Genetics 10, no. 7 (May 29, 2020): 2519–28. http://dx.doi.org/10.1534/g3.120.401155.

Full text

Abstract:

Crown-of-thorns starfish, Acanthaster planci (COTS), are common in coral reefs of Indo-Pacific Ocean. Since they are highly fecund predators of corals, periodic outbreaks of COTS cause substantial loss of healthy coral reefs. Using complete mitochondrial DNA sequences, we here examined how COTS outbreaks in the Ryukyu Archipelago, Japan are reflected by the profile of their population genetics. Population genetics of the blue starfish, Linckia laevigata, which lives in the Ryukyu Archipelago, but not break out and the northern Pacific sea star, Asterias amurensis, which lives in colder seawater around the main Islands of Japan, were also examined as controls. Our results showed that As. amurensis has at least two local populations that diverged approximately 4.7 million years ago (MYA), and no genetic exchanges have occurred between the populations since then. Linckia laevigata shows two major populations in the Ryukyu Archipelago that likely diverged ∼6.8 MYA. The two populations, each comprised of individuals collected from coast of the Okinawa Island and those from the Ishigaki Island, suggest the presence of two cryptic species in the Ryukyu Archipelago. On the other hand, population genetics of COTS showed a profile quite different from those of Asterias and Linckia. At least five lineages of COTS have arisen since their divergence ∼0.7 MYA, and each of the lineages is present at the Okinawa Island, Miyako Island, and Ishigaki Island. These results suggest that COTS have experienced repeated genetic bottlenecks that may be associated with or caused by repeated outbreaks.

APA, Harvard, Vancouver, ISO, and other styles

41

Souma, Jun. "First records of the lace bug genus Lasiacantha Stål, 1873 (Hemiptera, Heteroptera, Tingidae) from Japan." Check List 18, no. 4 (August 2, 2022): 839–43. http://dx.doi.org/10.15560/18.4.839.

Full text

Abstract:

The lace bug genus Lasiacantha Stål, 1873 (Hemiptera, Heteroptera, Tingidae, Tinginae, Tingini) is widely distributed in the Old World; however, no species has been recorded in Japan. To date, L. altimitrata (Takeya, 1933) has been reported in China and Taiwan. Here, I report Lasiacantha and L. altimitrata from Japan for the first time, based on materials collected from Ishigaki and Miyako islands in the Ryukyu Islands. In Japan, this lace bug is found in grasslands near beaches. Miyako Island is the easternmost locality for L. altimitrata.

APA, Harvard, Vancouver, ISO, and other styles

42

Souma, Jun, and Tadashi Ishikawa. "First record of the stink bug genus Ochrophara Stål, 1871 (Hemiptera, Heteroptera, Pentatomidae) from Japan." Check List 18, no. 5 (October 18, 2022): 1121–25. http://dx.doi.org/10.15560/18.5.1121.

Full text

Abstract:

The stink bug genus Ochrophara Stål, 1871 (Hemiptera, Heteroptera, Pentatomidae, Pentatominae, Sephelini) is dis-tributed in the Oriental Region, including southern China; however, no species has been recorded in Japan. To date, O. chinensis Zheng & Liu, 1987 has only been reported in China. In the present study, Ochrophara and O. chinensis were recorded in Japan for the first time based on materials from Okinawa and Ishigaki islands of the Ryukyu Islands. Oki-nawa Island is the northernmost locality for this genus. The species was attracted to artificial light on Okinawa Island.

APA, Harvard, Vancouver, ISO, and other styles

43

SUETSUGU, KENJI, and TATSUKI NISHIOKA. "Sciaphila sugimotoi (Triuridaceae), a new mycoheterotrophic plant from Ishigaki Island, Japan." Phytotaxa 314, no. 2 (July 25, 2017): 279. http://dx.doi.org/10.11646/phytotaxa.314.2.10.

Full text

Abstract:

A new species of Sciaphila (Triuridaceae), S. sugimotoi Suetsugu & T. Nishioka, is described and illustrated from Ishigaki Island, Okinawa Prefecture, Japan. The new species is similar to S. arfakiana in having a stipitate globose to ellipsoid knob without hairs in apices of all male perianth segments. However, it is clearly distinguishable by its shorter pedicel, filament-connective not extended and thick stem. A key to the Japanese Sciaphila based on the whole flower characteristics and stylar characteristics, are provided for easy identification of these rare mycoheterotrophic plants.

APA, Harvard, Vancouver, ISO, and other styles

44

ISHIKAWA, TADASHI, WANZHI CAI, and MASAAKI TOMOKUNI. "Sphedanolestes albipilosus (Hemiptera: Heteroptera: Reduviidae), a new harpactorine species from the Ryukyus and Taiwan." Zootaxa 1388, no. 1 (January 8, 2007): 45–50. http://dx.doi.org/10.11646/zootaxa.1388.1.3.

Full text

Abstract:

A new harpactorine assassin bug, Sphedanolestes albipilosus, is described on the basis of fresh specimens collected from Ishigaki-jima and Iriomote-jima Islands of the Ryukyu Islands, Japan, and from the Island of Taiwan. This species differs from its closest relative, S. subtilis (Jakovlev, 1893) known from mainland China, in having a smaller body, the fourth antennal segment distinctly longer than the third, and a dark longitudinal stripe on each side of the abdomen. Habitat and adult season of this species are notably limited in the Ryukyu Islands.

APA, Harvard, Vancouver, ISO, and other styles

45

Yasunaga, Tomohide. "Two new species of the mirine plant bug genus Cheilocapsus Kirkaldy (Heteroptera: Miridae: Mirinae) from Japanese Ryukyus and Taiwan." Tijdschrift voor Entomologie 161, no. 1 (December 3, 2018): 11–24. http://dx.doi.org/10.1163/22119434-00002071.

Full text

Abstract:

The fauna of the Asian mirine plant bug genus Cheilocapsus Kirkaldy, 1902 (Mirinae: Mirini) in the Japanese Ryukyu islands and Taiwan is updated, based mainly on new morphological features. Four species are now recognized, with descriptions of two new species, Cheilocapsus maius sp. n. (from Taiwan) and C. martius sp. n. (Ishigaki and Iriomote Islands of the Ryukyus). An annotated checklist including all known congeners and a key to the four species are provided. The phylogenetic relationship between Cheilocapsus and Pantilius Curtis is argued on the basis of their detailed structures and zoogeographical distribution pattern.

APA, Harvard, Vancouver, ISO, and other styles

46

JAŁOSZYŃSKI, PAWEŁ. "Two new species of Paraneseuthia Franz from Okinawa-jima (Coleoptera, Staphylinidae, Scydmaeninae)." Zootaxa 5306, no. 4 (June 22, 2023): 490–96. http://dx.doi.org/10.11646/zootaxa.5306.4.7.

Full text

Abstract:

Only one (recently discovered) nominal species of the eutheiine genus Paraneseuthia Franz is known to occur on the largest Ryukyuan Island of Okinawa-jima, while five other members of this rare genus inhabit Ishigaki-jima, Shikoku, Kyushu and Honshu. Undescribed species known from females only have been collected also on southwestern Iriomote-jima and northeastern Hokkaido. Two new Okinawan species are described: P. uminzo sp. n. and P. umisatu sp. n., suggesting that the diversity of Paraneseuthia in the Ryukyus is still known fragmentarily and new discoveries can be expected in other forested southern islands.

APA, Harvard, Vancouver, ISO, and other styles

47

Chang, Pao-Liang, Wei-Ting Fang, Pin-Fang Lin, and Yu-Shuang Tang. "Influence of Wind-Induced Antenna Oscillations on Radar Observations and Its Mitigation." Weather and Forecasting 35, no. 6 (December 2020): 2235–54. http://dx.doi.org/10.1175/waf-d-20-0064.1.

Full text

Abstract:

AbstractAs Typhoon Goni (2015) passed over Ishigaki Island, a maximum gust speed of 71 m s−1 was observed by a surface weather station. During Typhoon Goni’s passage, mountaintop radar recorded antenna elevation angle oscillations, with a maximum amplitude of ~0.2° at an elevation angle of 0.2°. This oscillation phenomenon was reflected in the reflectivity and Doppler velocity fields as Typhoon Goni’s eyewall encompassed Ishigaki Island. The main antenna oscillation period was approximately 0.21–0.38 s under an antenna rotational speed of ~4 rpm. The estimated fundamental vibration period of the radar tower is approximately 0.25–0.44 s, which is comparable to the predominant antenna oscillation period and agrees with the expected wind-induced vibrations of buildings. The reflectivity field at the 0.2° elevation angle exhibited a phase shift signature and a negative correlation of −0.5 with the antenna oscillation, associated with the negative vertical gradient of reflectivity. FFT analysis revealed two antenna oscillation periods at 0955–1205 and 1335–1445 UTC 23 August 2015. The oscillation phenomenon ceased between these two periods because Typhoon Goni’s eye moved over the radar site. The VAD analysis-estimated wind speeds at a range of 1 km for these two antenna oscillation periods exceeded 45 m s−1, with a maximum value of approximately 70 m s−1. A bandpass filter QC procedure is proposed to filter out the predominant wavenumbers (between 40 and 70) for the reflectivity and Doppler velocity fields. The proposed QC procedure is indicated to be capable of mitigating the major signals resulting from antenna oscillations.

APA, Harvard, Vancouver, ISO, and other styles

48

SUGAHARA, Kazuo, Yoshinari OHWAKI, and Kenji BANZAI. "Erosion Control in Pineapple Fields on the Island of Ishigaki." Japan Agricultural Research Quarterly: JARQ 35, no. 2 (2001): 91–96. http://dx.doi.org/10.6090/jarq.35.91.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Kawano, Yoshinobu, and Yuzo Kato. "Petrology of the omoto pluton, Ishigaki-jima island, Southern Ryukyus." JOURNAL OF MINERALOGY, PETROLOGY AND ECONOMIC GEOLOGY 85, no. 8 (1990): 390–401. http://dx.doi.org/10.2465/ganko.85.390.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Lee, MiJa. "A Study on the Karesansui and Ishigumi Culture in 『Sakuteiki』." Japanese Cultural Studies 70 (April 30, 2019): 87–105. http://dx.doi.org/10.18075/jcs..70.201904.087.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!