Article
Physics, Multidisciplinary
D. S. Ahn, J. Amano, H. Baba, N. Fukuda, H. Geissel, N. Inabe, S. Ishikawa, N. Iwasa, T. Komatsubara, T. Kubo, K. Kusaka, D. J. Morrissey, T. Nakamura, M. Ohtake, H. Otsu, T. Sakakibara, H. Sato, B. M. Sherrill, Y. Shimizu, T. Sumikama, H. Suzuki, H. Takeda, O. B. Tarasov, H. Ueno, Y. Yanagisawa, K. Yoshida
Summary: The most neutron-rich sodium nucleus observed so far, 39Na, was discovered at the RIKEN Nishina Center Radioactive Isotope Beam Factory. The study confirms the particle stability of 39Na and provides new key information for understanding nuclear binding and structure under extremely neutron-rich conditions. This discovery has significant implications for nuclear models and theories predicting the neutron dripline and sheds light on the nuclear shell property of 39Na at the neutron number N = 28.
PHYSICAL REVIEW LETTERS
(2022)
Article
Geosciences, Multidisciplinary
Farhana Huq, P. Craig Smalley, Viktoriya Yarushina, Ingar Johansen, Christian Alexander Schopke, Lena K. Ovrebo, Elin Skurtveit, Ebbe H. Hartz
Summary: Detailed profiles of formation water Sr-87/Sr-86 ratio and C-O-Sr isotope analysis of carbonate cements can help determine the location, cause, and duration of pressure barriers in reservoirs. This method is useful for identifying major long-term fluid communication barriers.
MARINE AND PETROLEUM GEOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Tzilla Eshel, Ofir Tirosh, Naama Yahalom-Mack, Ayelet Gilboa, Yigal Erel
Summary: This study presents the Ag isotopic values of silver artifacts from the Southern Levant, providing insights into the source and production of ancient silver. The results show that Phoenician silver is less fractionated compared to non-Phoenician silver, suggesting that the Phoenicians had access to ore minerals that did not undergo weathering-associated fractionation. Further investigation is needed to understand the influence of sealing and bundling on post-depositional fractionation of Ag isotopes in silver hoards.
APPLIED SCIENCES-BASEL
(2022)
Review
Chemistry, Multidisciplinary
Erik Johnstone, Natalia Mayordomo, Edward J. Mausolf
Summary: This article presents an overview of the chemical, nuclear, and physical properties of Tc-101 and its applications. Tc-101 is important for research and applications related to radioanalytical tracer studies, fusion materials, and nuclear medicine.
COMMUNICATIONS CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Wenjie Shang, Minxiang Zeng, A. N. M. Tanvir, Ke Wang, Mortaza Saeidi-Javash, Alexander Dowling, Tengfei Luo, Yanliang Zhang
Summary: A hybrid data-driven strategy combining Bayesian optimization and Gaussian process regression is proposed to optimize the composition of AgSe-based thermoelectric materials. Through active collection of experimental data, a significant improvement in material performance is achieved within seven iterations.
ADVANCED MATERIALS
(2023)
Article
Anthropology
Katrin Julia Westner, Markos Vaxevanopoulos, Janne Blichert-Toft, Gillan Davis, Francis Albarede
Summary: The Balkan Peninsula had abundant ore deposits that were mined for silver and other metals. The extraction of silver predates the Roman conquest, as indicated by tribal coinage dating back to the 5th century BCE. A comprehensive geochemical database was used to identify past metal production centers and reconstruct large-scale silver fluxes. The study provides high-precision Pb-Ag-S isotope data and trace element systematics for ore samples, which reveal the formation process of ore bodies and allow for enhanced assessment of potential metal sources.
JOURNAL OF ARCHAEOLOGICAL SCIENCE
(2023)
Article
Engineering, Chemical
Like Sun, Haoyang Huang, Ping Che, Qiang Lin, Kuo Lian, Jinbing Li, Yu Zhang, Yongsheng Han
Summary: This study used a confocal laser scanning microscope to reveal the thermal decomposition process of silver catalysts. It was found that the formation of silver catalysts involves two steps: crystallization and decomposition. The atmosphere during the heating process also affects the morphology and performance of the catalysts.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Biodiversity Conservation
Ester Gonzalez de Andres, Antonio Gazol, Jose Ignacio Querejeta, Jose M. Igual, Michele Colangelo, Raul Sanchez-Salguero, Juan Carlos Linares, J. Julio Camarero
Summary: This study provides novel insights into the mechanisms driving silver fir dieback and highlights the need to incorporate tree nutrition into forest dieback studies.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Multidisciplinary Sciences
M. Reponen, R. P. de Groote, L. Al Ayoubi, O. Beliuskina, M. L. Bissell, P. Campbell, L. Canete, B. Cheal, K. Chrysalidis, C. Delafosse, A. de Roubin, C. S. Devlin, T. Eronen, R. F. Garcia Ruiz, S. Geldhof, W. Gins, M. Hukkanen, P. Imgram, A. Kankainen, M. Kortelainen, A. Koszorus, S. Kujanpaa, R. Mathieson, D. A. Nesterenko, I. Pohjalainen, M. Vilen, A. Zadvornaya, I. D. Moore
Summary: Understanding the evolution of the nuclear charge radius has long been a challenge for nuclear theory. Testing charge radii in the N = 50 region of the silver isotopic chain using Fayans functionals revealed a challenge to nuclear theory, showing a discontinuity in nuclear size when crossing N equal to 50.
NATURE COMMUNICATIONS
(2021)
Article
Environmental Sciences
Jeff B. Langman, Ethan Gaddy, Timothy E. Link, Jan Boll, Bradley Barnett, Morgan Hill
Summary: The infiltration of precipitation into the lead-zinc-silver Bunker Hill Mine has led to the oxidation of pyrite and the production of acidic waters that are discharged from the mine portal. Through a university-industry partnership, the sources, flowpaths, and travel times of the mine water were traced to identify areas for infiltration reduction. The results indicate that creek water infiltrates quickly through modified pathways, causing the largest amount of acidic water in the upper levels of the mine. The slower and natural pathways, associated with faults, fractures, and bedding planes, produce mostly neutral waters with the source waters originating at higher elevations.
Article
Geochemistry & Geophysics
Yinlei Hao, Xingxing Kuang, Yuqing Feng, Yingchun Wang, Hui Zhou, Chunmiao Zheng
Summary: This study systematically reports the large-scale helium enrichment along the continental convergent margin for the first time. It identifies a 1200-km-long helium enrichment zone and demonstrates the complex crustal-scale structures significantly controlling gas geochemistry in the convergent margin. These findings have profound implications for potential helium resource exploration and He-CO2-N-2 recycling in continental subduction zones.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2023)
Article
Anthropology
Markos Vaxevanopoulos, Janne Blichert-Toft, Gillan Davis, Francis Albarede
Summary: This study combines lead isotopic analysis with geological characteristics to determine the ancient silver ore sources in Greece, identifying several historically significant mining districts. Newly discovered ancient mining areas in Pelion and the Kroussia mountain range are also documented, reshaping our understanding of ancient Greek history.
JOURNAL OF ARCHAEOLOGICAL SCIENCE
(2022)
Article
History & Philosophy Of Science
K. Brad Wray
Summary: This article challenges Gareth Eaton's claim that Theodore Richards should be considered one of the discoverers of isotopes. Drawing on two influential theories of scientific discovery developed by Thomas Kuhn and Augustine Brannigan, the author argues that although Richards' experimental work contributed to the discovery, it does not warrant attributing the discovery to him.
FOUNDATIONS OF CHEMISTRY
(2023)
Article
Geology
Stella Bijos Guimaraes, Evandro L. Klein, Chris Harris, Iago Sousa Lima Costa
Summary: The Coringa gold-silver deposit in the Tapajos Mineral Province is interpreted to have formed in a post-collisional volcano-plutonic setting. The mineralized shear-vein system coincides with a magnetic trend that may represent a crustal discontinuity. The deposit includes barren quartz veins and quartz-sulfide veins with varying temperature formation.
ORE GEOLOGY REVIEWS
(2021)
Article
Environmental Sciences
Mohamed Osman Awaleh, Tiziano Boschetti, Abdillahi Elmi Adaneh, Mahamoud Ali Chirdon, Moussa Mahdi Ahmed, Omar Assowe Dabar, Youssouf Djibril Soubaneh, Nima Moussa Egueh, Ali Dirir Kawalieh, Ibrahim Houssein Kadieh, Mohamed Chaheire
Summary: The study reveals that the Ali-Sabieh aquifers in the East African Rift System are overexploited and contaminated with high concentrations of nitrate and sulfate, originating from anthropogenic activities and geological processes. The groundwater samples show a chemical evolution from fresh to brackish water mainly due to water-rock interaction.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Physics, Nuclear
M. Thoennessen
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
(2015)
Article
Physics, Nuclear
J. K. Smith, T. Baumann, J. Brown, P. A. DeYoung, N. Frank, J. Hinnefeld, Z. Kohley, B. Luther, B. Marks, A. Spyrou, S. L. Stephenson, M. Thoennessen, S. J. Williams
Article
Physics, Nuclear
M. D. Jones, N. Frank, T. Baumann, J. Brett, J. Bullaro, P. A. De Young, J. E. Finck, K. Hammerton, J. Hinnefeld, Z. Kohley, A. N. Kuchera, J. Pereira, A. Rabeh, W. F. Rogers, J. K. Smith, A. Spyrou, S. L. Stephenson, K. Stiefel, M. Tuttle-Timm, R. G. T. Zegers, M. Thoennessen
Article
Physics, Multidisciplinary
M. Thoennessen
PRAMANA-JOURNAL OF PHYSICS
(2015)
Review
Physics, Nuclear
M. Thoennessen
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
(2016)
Article
Physics, Nuclear
J. K. Smith, T. Baumann, D. Bazin, J. Brown, P. A. DeYoung, N. Frank, M. D. Jones, Z. Kohley, B. Luther, B. Marks, A. Spyrou, S. L. Stephenson, M. Thoennessen, A. Volya
Review
Physics, Nuclear
M. Thoennessen
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
(2017)
Review
Physics, Nuclear
M. Thoennessen
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
(2018)
Review
Physics, Nuclear
M. Thoennessen
INTERNATIONAL JOURNAL OF MODERN PHYSICS E
(2019)
Article
Multidisciplinary Sciences
Y. Kondo, N. L. Achouri, H. Al Falou, L. Atar, T. Aumann, H. Baba, K. Boretzky, C. Caesar, D. Calvet, H. Chae, N. Chiga, A. Corsi, F. Delaunay, A. Delbart, Q. Deshayes, Zs. Dombradi, C. A. Douma, A. Ekstrom, Z. Elekes, C. Forssen, I. Gasparic, J. -M. Gheller, J. Gibelin, A. Gillibert, G. Hagen, M. N. Harakeh, A. Hirayama, C. R. Hoffman, M. Holl, A. Horvat, A. Horvath, J. W. Hwang, T. Isobe, W. G. Jiang, J. Kahlbow, N. Kalantar-Nayestanaki, S. Kawase, S. Kim, K. Kisamori, T. Kobayashi, D. Koerper, S. Koyama, I. Kuti, V. Lapoux, S. Lindberg, F. M. Marques, S. Masuoka, J. Mayer, K. Miki, T. Murakami, M. Najafi, T. Nakamura, K. Nakano, N. Nakatsuka, T. Nilsson, A. Obertelli, K. Ogata, F. de Oliveira Santos, N. A. Orr, H. Otsu, T. Otsuka, T. Ozaki, V. Panin, T. Papenbrock, S. Paschalis, A. Revel, D. Rossi, A. T. Saito, T. Y. Saito, M. Sasano, H. Sato, Y. Satou, H. Scheit, F. Schindler, P. Schrock, M. Shikata, N. Shimizu, Y. Shimizu, H. Simon, D. Sohler, O. Sorlin, L. Stuhl, Z. H. Sun, S. Takeuchi, M. Tanaka, M. Thoennessen, H. Toernqvist, Y. Togano, T. Tomai, J. Tscheuschner, J. Tsubota, N. Tsunoda, T. Uesaka, Y. Utsuno, I. Vernon, H. Wang, Z. Yang, M. Yasuda, K. Yoneda, S. Yoshida
Summary: Subjecting a physical system to extreme conditions is a common method to gain a better understanding of its organization and structure. The investigation of isotopes with different neutron-to-proton ratios than stable nuclei is an important test for nuclear-structure theories. This study reports the first observation of the decay of O-28 and 27O isotopes and compares their decay energies with theoretical models. The results have implications for the understanding of nuclear structure.
Article
Physics, Nuclear
A. N. Kuchera, D. Bazin, T. Phan, J. A. Tostevin, M. Babo, T. Baumann, P. C. Bender, M. Bowry, J. Bradt, J. Brown, P. A. DeYoung, B. Elman, J. E. Finck, A. Gade, G. F. Grinyer, M. D. Jones, B. Longfellow, E. Lunderberg, T. H. Redpath, W. F. Rogers, K. Stiefe, M. Thoennessen, D. Votaw, D. Weisshaar, K. Whitmore, R. B. Wiringa
Summary: This study investigates nucleon removal reactions and validates the models used to calculate the removal reaction cross sections. Three different nucleon removal reactions were performed and the partial cross sections to individual final states were determined by detecting the residual nuclei in coincidence with gamma rays. Comparison between measured and calculated cross sections reveals that the theoretical description of the removal process is in better agreement with the data when removing weakly bound nucleons.
Article
Physics, Nuclear
D. Votaw, P. A. DeYoung, T. Baumann, A. Blake, J. Boone, J. Brown, D. Chrisman, J. E. Finck, N. Frank, J. Gombas, P. Gueye, J. Hinnefeld, H. Karrick, A. N. Kuchera, H. Liu, B. Luther, F. Ndayisabye, M. Neal, J. Owens-Fryar, J. Pereira, C. Persch, T. Phan, T. Redpath, W. F. Rogers, S. Stephenson, K. Stiefel, C. Sword, A. Wantz, M. Thoennessen
Article
Physics, Nuclear
C. Sword, J. Brett, T. Baumann, B. A. Brown, N. Frank, J. Herman, M. D. Jones, H. Karrick, A. N. Kuchera, M. Thoennessen, J. A. Tostevin, M. Tuttle-Timm, P. A. DeYoung
Article
Physics, Nuclear
M. D. Jones, K. Fossez, T. Baumann, P. A. DeYoung, J. E. Finck, N. Frank, A. N. Kuchera, N. Michel, W. Nazarewicz, J. Rotureau, J. K. Smith, S. L. Stephenson, K. Stiefel, M. Thoennessen, R. G. T. Zegers
Article
Physics, Nuclear
M. D. Jones, T. Baumann, J. Brett, J. Bullaro, P. A. DeYoung, J. E. Finck, N. Frank, K. Hammerton, J. Hinnefeld, Z. Kohley, A. N. Kuchera, J. Pereira, A. Rabeh, J. K. Smith, A. Spyrou, S. L. Stephenson, K. Stiefel, M. Tuttle-Timm, R. G. T. Zegers, M. Thoennessen