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Journal Articles

Diverse microbiome functions, limited temporal variation and substantial genomic conservation within sedimentary and granite rock deep underground research laboratories

Amano, Yuki; Sachdeva, R.*; Gittins, D.*; Anantharaman, K.*; Lei, S.*; Valentin-Alvarado, L. E.*; Diamond, S.*; Beppu, Hikari*; Iwatsuki, Teruki; Mochizuki, Akihito; et al.

Environmental Microbiome (Internet), 19, p.105_1 - 105_17, 2024/12

 Times Cited Count:0 Percentile:0.00(Genetics & Heredity)

Journal Articles

Methanotrophic ${it Methanoperedens}$ archaea host diverse and interacting extrachromosomal elements

Shi, L.-D.*; West-Roberts, J.*; Schoelmerich, M. C.*; Penev, P. I.*; Chen, L.-X.*; Amano, Yuki; Lei, S.*; Sachdeva, R.*; Banfield, J. F.*

Nature Microbiology (Internet), 9(9), p.2422 - 2433, 2024/09

 Times Cited Count:0 Percentile:0.00(Microbiology)

Journal Articles

A Predicted CRISPR-mediated symbiosis between uncultivated archaea

Esser, S. P.*; Rahlff, J.*; Zhao, W.*; Predl, M.*; Plewka, J.*; Sures, K.*; Wimmer, F.*; Lee, J.*; Adam, P. S.*; McGonigle, J.*; et al.

Nature Microbiology (Internet), 8(9), p.1619 - 1633, 2023/09

 Times Cited Count:7 Percentile:81.05(Microbiology)

Journal Articles

A Widespread group of large plasmids in methanotrophic ${it Methanoperedens}$ archaea

Schoelmerich, M. C.*; Oubouter, H. T.*; Sachdeva, R.*; Penev, P. I.*; Amano, Yuki; West-Roberts, J.*; Welte, C. U.*; Banfield, J. F.*

Nature Communications (Internet), 13, p.7085_1 - 7085_11, 2022/11

 Times Cited Count:11 Percentile:76.19(Multidisciplinary Sciences)

Journal Articles

Magnonic Wiedemann-Franz law

Nakata, Koki

Kotai Butsuri, 56(8), p.429 - 439, 2021/08

AA2021-0370.pdf:1.54MB

We review the thermomagnetic relation of bosons, the Wiedemann-Franz law for magnon transport, and discuss the universality.

Journal Articles

Patterns of gene content and co-occurrence constrain the evolutionary path toward animal association in Candidate Phyla Radiation bacteria

Jaffe, A. L.*; Thomas, A. D.*; He, C.*; Keren, R.*; Valentin-Alvarado, L. E.*; Munk, P.*; Bouma-Gregson, K.*; Farag, I. F.*; Amano, Yuki; Sachdeva, R.*; et al.

mBio, 12(4), p.e00521-21_1 - e00521-21_21, 2021/08

 Times Cited Count:27 Percentile:88.32(Microbiology)

Journal Articles

Groundwater $$Elusimicrobia$$ are metabolically diverse compared to gut microbiome $$Elusimicrobia$$ and some have a novel nitrogenase paralog

M$'e$heust, R.*; Castelle, C. J.*; Matheus Carnevali, P. B.*; Farag, I. F.*; He, C.*; Chen, L.-X.*; Amano, Yuki; Hug, L. A.*; Banfield, J. F.*

ISME Journal, 14(12), p.2907 - 2922, 2020/12

 Times Cited Count:63 Percentile:96.27(Ecology)

Journal Articles

Clades of huge phages from across Earth's ecosystems

Al-Shayeb, B.*; Sachdeva, R.*; Chen, L.-X.*; Ward, F.*; Munk, P.*; Devoto, A.*; Castelle, C. J.*; Olm, M. R.*; Bouma-Gregson, K.*; Amano, Yuki; et al.

Nature, 578(7795), p.425 - 431, 2020/02

 Times Cited Count:268 Percentile:99.46(Multidisciplinary Sciences)

Journal Articles

Assessment of the potential for criticality in the far field of a used nuclear fuel repository

Atz, M.*; Salazar, A.*; Hirano, Fumio; Fratoni, M.*; Ahn, J.*

Annals of Nuclear Energy, 124, p.28 - 38, 2019/02

 Times Cited Count:4 Percentile:36.10(Nuclear Science & Technology)

The likelihood for criticality in the far field of a repository was evaluated for direct disposal of commercial light water reactor used nuclear fuel. Two models were used in combination for this evaluation: (1) a neutronics model to estimate the minimum critical masses of spherical, water-saturated depositions of fuel material; (2) a transport model to simulate the dissolution of fuel material from multiple canisters and the subsequent transport of the solutes through host rock to a single accumulation location. The results suggest that accumulation of a critical mass is possible under conservative conditions but that these conditions are unlikely to occur, especially in the vicinity of a carefully-arranged repository.

Journal Articles

Tunable magnonic thermal Hall effect in skyrmion crystal phases of ferrimagnets

Kim, S. K.*; Nakata, Koki; Loss, D.*; Tserkovnyak, Y.*

Physical Review Letters, 122(5), p.057204_1 - 057204_6, 2019/02

AA2018-0633.pdf:2.02MB

 Times Cited Count:63 Percentile:93.91(Physics, Multidisciplinary)

We theoretically study the thermal Hall effect by magnons in skyrmion crystal phases of ferrimagnets in the vicinity of the angular momentum compensation point (CP). For an experimental proposal, we predict that themagnonic thermal Hall conductivity changes its sign when the ferrimagnet is tuned across the CP, providing a way to control heat flux in spin-caloritronic devices on the one hand and a feasible way todetect the CP of ferrimagnets on the other hand.

Journal Articles

Hydrogen-based metabolism as an ancestral trait in lineages sibling to the Cyanobacteria

Matheus Carnevali, P. B.*; Schulz, F.*; Castelle, C. J.*; Kantor, R. S.*; Shih, P.*; Sharon, I.*; Santini, J.*; Olm, M. R.*; Amano, Yuki; Thomas, B. C.*; et al.

Nature Communications (Internet), 10, p.463_1 - 463_15, 2019/01

 Times Cited Count:46 Percentile:88.03(Multidisciplinary Sciences)

Journal Articles

Radiocesium interaction with clay minerals; Theory and simulation advances Post-Fukushima

Okumura, Masahiko; Kerisit, S.*; Bourg, I. C.*; Lammers, L. N.*; Ikeda, Takashi*; Sassi, M.*; Rosso, K. M.*; Machida, Masahiko

Journal of Environmental Radioactivity, 189, p.135 - 145, 2018/09

 Times Cited Count:60 Percentile:87.37(Environmental Sciences)

no abstracts in English

Journal Articles

Liquid-like thermal conduction in intercalated layered crystalline solids

Li, B.; Wang, H.*; Kawakita, Yukinobu; Zhang, Q.*; Feygenson, M.*; Yu, H. L.*; Wu, D.*; Ohara, Koji*; Kikuchi, Tatsuya*; Shibata, Kaoru; et al.

Nature Materials, 17(3), p.226 - 230, 2018/03

 Times Cited Count:148 Percentile:97.13(Chemistry, Physical)

Journal Articles

Uncertainty analysis of far-field precipitation from used nuclear fuel

Salazar, A.*; Fratoni, M.*; Ahn, J.*; Hirano, Fumio

Proceedings of 2017 International High-Level Radioactive Waste Management Conference (IHLRWM 2017) (CD-ROM), p.600 - 607, 2017/04

Journal Articles

Effects of random geometry on post-closure repository criticality safety

Liu, X.*; Fratoni, M.*; Ahn, J.*; Hirano, Fumio

Proceedings of 2017 International High-Level Radioactive Waste Management Conference (IHLRWM 2017) (CD-ROM), p.595 - 599, 2017/04

Journal Articles

Material composition effects on far-field deposition minimum critical mass

Atz, M.*; Liu, X.*; Fratoni, M.*; Ahn, J.*; Hirano, Fumio

Proceedings of 2017 International High-Level Radioactive Waste Management Conference (IHLRWM 2017) (CD-ROM), p.608 - 614, 2017/04

Journal Articles

Potential for microbial H$$_{2}$$ and metal transformations associated with novel bacteria and archaea in deep terrestrial subsurface sediments

Hernsdorf, A. W.*; Amano, Yuki; Miyakawa, Kazuya; Ise, Kotaro; Suzuki, Yohei*; Anantharaman, K.*; Probst, A. J.*; Burstein, David*; Thomas, B. C.*; Banfield, J. F.*

ISME Journal, 11, p.1915 - 1929, 2017/03

AA2016-0002.pdf:2.21MB

 Times Cited Count:104 Percentile:96.35(Ecology)

To evaluate the potential for interactions between microbial communities and disposal systems, we explored the structure and metabolic function of a sediment-hosted subsurface ecosystem associated with Horonobe Underground Research Center, Hokkaido, Japan. Overall, the ecosystem is enriched in organisms from diverse lineages and many are from phyla that lack isolated representatives. The majority of organisms can metabolize H$$_{2}$$, often via oxidative [NiFe] hydrogenases or electron-bifurcating [FeFe] hydrogenases that enable ferredoxin-based pathways, including the ion motive Rnf complex. Many organisms implicated in H$$_{2}$$ metabolism are also predicted to catalyze carbon, nitrogen, iron, and sulfur transformations. Notably, iron-based metabolism was predicted in a bacterial lineage where this function has not been predicted previously and in an ANME-2d archaeaon that is implicated in methane oxidation. We infer an ecological model that links microorganisms to sediment-derived resources and predict potential impacts of microbial activity on H$$_{2}$$ accumulation and radionuclide migration.

Journal Articles

A New view of the tree of life

Hug, L. A.*; Baker, B. J.*; Anantharaman, K.*; Brown, C. T.*; Probst, A. J.*; Castelle, C. J.*; Butterfield, C. N.*; Hernsdorf, A. W.*; Amano, Yuki; Ise, Kotaro; et al.

Nature Microbiology (Internet), 1(5), p.16048_1 - 16048_6, 2016/05

 Times Cited Count:1321 Percentile:99.96(Microbiology)

The tree of life is one of the most important organizing principles in biology. Gene surveys suggest the existence of an enormous number of branches, but even an approximation of the full scale of The Tree has remained elusive. Here, we use newly available information from genomes of uncultivated organisms, along with other published sequences, to present a new version of the Tree of life, with Bacteria, Archaea and Eukaryotes included. The depiction is both a global overview and a snapshot of the diversity within each major lineage. The results imply the predominance of bacterial diversification and underline the importance of organisms lacking isolated representatives, with substantial evolution concentrated in a major radiation of such organisms.

Journal Articles

A Criticality safety study for the disposal of damaged fuel debris

Liu, X.*; Ahn, J.*; Hirano, Fumio

Proceedings of 2015 International High-Level Radioactive Waste Management Conference (IHLRWM 2015) (CD-ROM), p.879 - 886, 2015/04

The present work focuses on neutronics analysis for the disposal of damaged fuels from Fukushima Nuclear Power Plants. MCNP calculations were performed for a canister containing fuel debris surrounded by buffer in deep geologic repository in a water-saturated reducing environment at different times after canister emplacement. The damaged fuel debris is modeled as spherical particles in a hexagonal lattice. Four different cases were compared based on various assumptions about moderation and fuel relocation. Based on the numerical results, the key findings include, (a) the calculated neutron multiplication factor ($$k_{eff}$$) is sensitively dependent on assumptions related with moderation, (b) the carbon steel canister plays an important role in reducing the likelihood of criticality, (c) the maximum $$k_{eff}$$ of the canister-buffer system could be achieved after a certain fraction of fissile nuclides has been released from the canister, and (d) under several assumptions, the maximum $$k_{eff}$$ of the canister-buffer system could be only determined by the dimension and composition of the canister rather than the initial fuel loading.

Journal Articles

Conditions for criticality by uranium deposition in water-saturated geological formations

Liu, X.*; Ahn, J.*; Hirano, Fumio

Journal of Nuclear Science and Technology, 52(3), p.416 - 425, 2015/03

 Times Cited Count:2 Percentile:16.44(Nuclear Science & Technology)

33 (Records 1-20 displayed on this page)