51 Works

Effectiveness of orally-delivered double-stranded RNA on gene silencing in the stinkbug Plautia stali

Yudai Nishide, Daisuke Kageyama, Yoshiaki Tanaka, Kakeru Yokoi, Akiya Jouraku, Ryo Futahashi & Takema Fukatsu
The stinkbug Plautia stali shows high sensitivity to RNAi with injected dsRNA but very low sensitivity to RNAi with orally-delivered dsRNA.

Additional file 1 of Metal contamination in a sediment core from Osaka Bay during the last 400 years

Kai Nils Nitzsche, Toshihiro Yoshimura, Naoto F. Ishikawa, Hiroto Kajita, Hodaka Kawahata, Nanako O. Ogawa, Katsuhiko Suzuki, Yusuke Yokoyama & Naohiko Ohkouchi
Additional file 1: Table S1. Cu, Zn. Pb, Co, and Ni concentrations in the exchangeable fraction extracted by 1M NH4Cl and their proportion (%) in the acid-soluble fraction extracted two times with 0.11M acetic acid (Hac) of ten selected samples. Table S2. Bulk Cu, Zn, Pb, Co, and Ni concentrations and δ66Zn values of samples analyzed for Zn stable isotopes of the core OS5B. *ND: not determined. Fig. S1. Catchment of Osaka Bay (bold black...

Additional file 1 of Three-dimensional shape distribution of lunar regolith particles collected by the Apollo and Luna programs

Akira Tsuchiyama, Takashi Sakurama, Tsukasa Nakano, Kentaro Uesugi, Makiko Ohtake, Takashi Matsushima, Kazuo Terakado & Erik M. Galimov
Additional file 1. Additional tables.

Additional file 2 of Three-dimensional shape distribution of lunar regolith particles collected by the Apollo and Luna programs

Akira Tsuchiyama, Takashi Sakurama, Tsukasa Nakano, Kentaro Uesugi, Makiko Ohtake, Takashi Matsushima, Kazuo Terakado & Erik M. Galimov
Additional file 2. Additional figures.

Additional file 2 of Three-dimensional shape distribution of lunar regolith particles collected by the Apollo and Luna programs

Akira Tsuchiyama, Takashi Sakurama, Tsukasa Nakano, Kentaro Uesugi, Makiko Ohtake, Takashi Matsushima, Kazuo Terakado & Erik M. Galimov
Additional file 2. Additional figures.

Three-dimensional shape distribution of lunar regolith particles collected by the Apollo and Luna programs

Akira Tsuchiyama, Takashi Sakurama, Tsukasa Nakano, Kentaro Uesugi, Makiko Ohtake, Takashi Matsushima, Kazuo Terakado & Erik M. Galimov
Abstract The shapes of regolith particles on airless bodies, such as the Moon and asteroids, are important to understand their formation and evolution on surfaces. Limited studies have shown that the three-dimensional (3D) shapes of lunar regolith particles are, on average, more equant (spherical) than those of asteroid Itokawa or fragments by impact experiments. Therefore, more studies are required to determine whether such a feature is common. Accordingly, we performed X-ray microtomography imaging of lunar...

Data from: Live imaging of symbiosis: spatiotemporal infection dynamics of GFP-labelled Burkholderia symbiont in the bean bug Riptortus pedestris

Yoshitomo Kikuchi & Takema Fukatsu
Many insects possess endosymbiotic bacteria inside their body, wherein intimate interactions occur between the partners. While recent technological advancements have deepened our understanding of metabolic and evolutionary features of the symbiont genomes, molecular mechanisms underpinning the intimate interactions remain difficult to approach because the insect symbionts are generally uncultivable. The bean bug Riptortus pedestris is associated with the betaproteobacterial Burkholderia symbiont in a posterior region of the midgut, which develops numerous crypts harbouring the symbiont...

Data from: Prediction error induced motor contagions in human behaviors

Tsuyoshi Ikegami, Gowrishankar Ganesh, Tatsuya Takeuchi & Hiroki Nakamoto
Motor contagions refer to implicit effects on one's actions induced by observed actions. Motor contagions are believed to be induced simply by action observation and cause an observer's action to become similar to the action observed. In contrast, here we report a new motor contagion that is induced only when the observation is accompanied by prediction errors - differences between actions one observes and those he/she predicts or expects. In two experiments, one on whole-body...

Data from: Functional crosstalk across IMD and Toll pathways: insight into the evolution of incomplete immune cascades

Yudai Nishide, Daisuke Kageyama, Kakeru Yokoi, Akiya Jouraku, Hiromitsu Tanaka, Ryo Futahashi & Takema Fukatsu
In insects, antimicrobial humoral immunity is governed by two distinct gene cascades, IMD pathway mainly targeting Gram-negative bacteria and Toll pathway preferentially targeting Gram-positive bacteria, which are widely conserved among diverse metazoans. However, recent genomic studies uncovered that IMD pathway is exceptionally absent in some hemipteran lineages like aphids and assassin bugs. How the apparently incomplete immune pathways have evolved with functionality is of interest. Here we report the discovery that, in the hemipteran stinkbug...

Venus Climate Orbiter Akatsuki LIR Raw Data PDS3 dataset

Shin-ya Murakami, Toru Kouyama, Tetsuya Fukuhara, Makoto Taguchi, Manabu Yamada, Atsushi Yamazaki, Kevin McGouldrick, Yukio Yamamoto & George L. Hashimoto
This dataset contains products acquired by the LIR instrument of the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. This dataset conforms PDS3 Standard. This dataset uses the Committee on Data Management and Computation (CODMAC) data level numbering system. The LIR EDRs are considered Level 2 or Edited Data (equivalent to NASA Level 1A). The EDRs are reconstructed from Level 1 or Raw Data. This dataset consists entirely of FITS files. Uncalibrated...

Experimental Determination of Electron Inelastic Mean Free Paths in 13 Elemental Solids in the 50 eV to 5000 eV Energy Range by Elastic-Peak Electron Spectroscopy

Shigeo Tanuma, T. Shiratori, Takashi Kimura, Keisuke Goto, Shingo Ichimura & Cedric J Powell
We have determined electron inelastic mean free paths (IMFPs) in C (graphite), Si, Cr, Fe, Cu, Zn, Ga, Mo, Ag, Ta, W, Pt and Au by elastic-peak electron spectroscopy (EPES) using Ni as a reference material for electron energies between 50 eV and 5000 eV. These IMFPs could be fitted by the simple Bethe equation for inelastic electron scattering in matter for energies from 100 eV to 5000 eV. The average root-mean-square (RMS) deviation in...

Venus Climate Orbiter Akatsuki Cloud Motion Vector Data Set

Takeshi Horinouchi, Shin-ya Murakami, Kazunori Ogohara, Toru Kouyama & Masahiro Takagi
This dataset contains cloud motion vector data acquired by the automated cloud tracking from images of the UVI and IR2 instruments of the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. This dataset consists of NetCDF files. This dataset is produced from the longitude-latitude map datasets.

Metal contamination in a sediment core from Osaka Bay during the last 400 years

Kai Nils Nitzsche, Toshihiro Yoshimura, Naoto F. Ishikawa, Hiroto Kajita, Hodaka Kawahata, Nanako O. Ogawa, Katsuhiko Suzuki, Yusuke Yokoyama & Naohiko Ohkouchi
Abstract Osaka Bay adjacent to the Kyoto–Osaka–Kobe metropolitan area was affected by severe metal pollution during the twentieth century; yet little is known about the trace metal sources and pre-industrial human activities. We have determined the elemental concentrations and zinc stable isotope ratios (δ66Zn) in bulk sediments and the trace metal concentrations in chemical fractions of a 9-m-long sediment core from Osaka Bay. Our goals were (1) to reconstruct the historical trace metal contamination, and...

Additional file 1 of Akatsuki LIR observing system simulation experiments evaluated by thermal tides in the Venus atmosphere

Norihiko Sugimoto, Yukiko Fujisawa, Nobumasa Komori, Hiroki Ando, Toru Kouyama & Masahiro Takagi
Additional file 1. Explanation of Supplementary Information and additional figures.

Additional file 3 of Akatsuki LIR observing system simulation experiments evaluated by thermal tides in the Venus atmosphere

Norihiko Sugimoto, Yukiko Fujisawa, Nobumasa Komori, Hiroki Ando, Toru Kouyama & Masahiro Takagi
Additional file 3. Data set.

Akatsuki LIR observing system simulation experiments evaluated by thermal tides in the Venus atmosphere

Norihiko Sugimoto, Yukiko Fujisawa, Nobumasa Komori, Hiroki Ando, Toru Kouyama & Masahiro Takagi
Abstract Impacts of temperature assimilation on Venusian thermal tides are investigated by the observing system simulation experiments assuming Akatsuki Longwave Infrared Camera (LIR) observations. Synthetic temperature data are prepared by a Venusian general circulation model (VGCM) to test if LIR temperature data resolves a discrepancy in the structure of thermal tides between observations and the VGCM. They are assimilated at 70 km altitude with several combinations of frequency and horizontal region. The result shows that...

Additional file 1 of Three-dimensional shape distribution of lunar regolith particles collected by the Apollo and Luna programs

Akira Tsuchiyama, Takashi Sakurama, Tsukasa Nakano, Kentaro Uesugi, Makiko Ohtake, Takashi Matsushima, Kazuo Terakado & Erik M. Galimov
Additional file 1. Additional tables.

Data from: Conserved but attenuated parental gene expression in allopolyploids: constitutive zinc hyperaccumulation in the allotetraploid Arabidopsis kamchatica

Timothy Paape, Masaomi Hatakeyama, Rie Shimizu-Inatsugi, Teo Cereghetti, Onda Yoshihiko, Tanaka Kenta, Jun Sese & Kentaro K. Shimizu
Allopolyploidization combines parental genomes and often confers broader species distribution. However, little is known about parentally transmitted gene expression underlying quantitative traits following allopolyploidization because of the complexity of polyploid genomes. The allopolyploid species Arabidopsis kamchatica is a natural hybrid of the zinc hyperaccumulator A. halleri and of the nonaccumulator A. lyrata. We found that A. kamchatica retained the ability to hyperaccumulate zinc from A. halleri and grows in soils with both low and high...

Data from: Importance of antecedent environmental conditions in modeling species distributions

Masahiro Ryo, Chihiro Yoshimura & Yuichi Iwasaki
Although species distributions can change in an unexpectedly short period of time, most species distribution models (SDMs) use only long-term averaged environmental conditions to explain species distributions. We aimed to demonstrate the importance of incorporating antecedent environmental conditions into SDMs in comparison to long-term averaged environmental conditions. We modeled the presence/absence of 18 fish species captured across 108 sampling events along a 50-km length of the Sagami River in Japan throughout the 1990s (one to...

Venus Climate Orbiter Akatsuki IR1 Longitude-Latitude Map Data

Shin-ya Murakami, Kazunori Ogohara, Masahiro Takagi, Hiroki Kashimura, Manabu Yamada, Toru Kouyama, Takeshi Horinouchi & Takeshi Imamura
This dataset contains longitude-latitude map data created from images acquired by the IR1 instrument of the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. This dataset consists of NetCDF and FITS files. The longitude-latitude map data are included as Level 3 product in NetCDF. During process of creating longitude-latitude map data, pointing of spacecraft was corrected using limb-fitting technique. Detected limb points and information on fitted ellipse are provided as auxiliary data,...

Venus Climate Orbiter Akatsuki IR2 Longitude-Latitude Map Data

Shin-ya Murakami, Kazunori Ogohara, Masahiro Takagi, Hiroki Kashimura, Manabu Yamada, Toru Kouyama, Takeshi Horinouchi & Takeshi Imamura
This dataset contains longitude-latitude map data created from images acquired by the IR2 instrument of the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft. This dataset consists of NetCDF and FITS files. The longitude-latitude map data are included as Level 3 product in NetCDF. During process of creating longitude-latitude map data, pointing of spacecraft was corrected using limb-fitting technique. Detected limb points and information on fitted ellipse are provided as auxiliary data,...

Venus Climate Orbiter Akatsuki Dataset Collection

Shin-ya Murakami, Yukio Yamamoto, Kevin McGouldrick, George L. Hashimoto, Manabu Yamada, Atsushi Yamazaki, Takao M. Sato, Naru Hirata, Shoko Ohtsuki, Shingo Kameda, Takehiko Satoh, Toru Kouyama, Tetsuya Fukuhara, Makoto Taguchi, Hiroki Ando, Takeshi Imamura, Kazunori Ogohara, Masahiro Takagi, Hiroki Kashimura & Takeshi Horinouchi
This collection consists of datasets of the Venus Climate Orbiter (VCO, also known as PLANET-C and AKATSUKI) spacecraft.

Phosphate bound to calcareous sediments hamper skeletal development of juvenile coral

Mariko Iijima
To test the hypothesis that terrestrial runoff affects the functions of calcareous sediments in coral reefs and hampers the development of corals, we analysed calcareous sediments with different levels of bound phosphate, collected from reef areas of Okinawajima, Japan. We confirmed that phosphate bound to calcareous sediments were readily released into ambient seawater, resulting in much higher concentrations of phosphorous in seawater from heavily polluted areas (4.3 to 19.0 µM as compared with < 0.096...

Automatic radioisotope manipulation for small amount of nuclear medicine using an EWOD device with a dimple structure

Katsuo Mogi, Hiroyuki Kimura, Yuto Kondo, Tomoya Inoue, Shungo Adachi & Tohru Natsume
Delicate animal experiments and microdose clinical trials using short-lived radioisotopes require rapid preparation with high accuracy and careful attention to safety within a limited timeframe. We have developed an open-style electrowetting on dielectric device containing dimple structures for the rapid preparation of radiolabelled reagents. The device was demonstrated by automatic preparation of a 99mTc-DTPA with high chelation efficiency (99.7 ± 0.13%). Additionally, we demonstrated the single photon emission computed tomography (SPECT)/Computed tomography (CT) imaging of...

Comprehensive comparative morphology and developmental staging of final instar larvae toward metamorphosis in the insect order Odonata

Genta Okude, Takema Fukatsu & Ryo Futahashi
The order Odonata (dragonflies and damselflies) is among the most ancestral groups of winged insects with drastic morphological changes upon metamorphosis, and thus important for understanding evo-devo aspects of insects. However, basic developmental descriptions of Odonata have been scarce. In an attempt to establish the foundation of developmental and experimental biology of Odonata, we present an unprecedentedly comprehensive survey of dragonflies and damselflies, in total 158 larvae representing 49 species and 14 families, wherein morphological...

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