890 research outputs found
Emotional Distress During COVID-19 by Mental Health Conditions and Economic Vulnerability: Retrospective Analysis of Survey-Linked Twitter Data With a Semisupervised Machine Learning Algorithm
No full textThe brief summarizes Emotional Distress During COVID-19 by Mental Health Conditions and Economic Vulnerability: Retrospective Analysis of Survey-Linked Twitter Data With a Semisupervised Machine Learning Algorithm, co-authored by Michiko Ueda-Ballmer, Kohei Watanabe, and Hajime Sueki in the Journal of Medical Internet Research
sj-docx-1-tam-10.1177_17588359231198453 – Supplemental material for Adverse events induced by durvalumab and tremelimumab combination regimens: a systematic review and meta-analysis
No full textSupplemental material, sj-docx-1-tam-10.1177_17588359231198453 for Adverse events induced by durvalumab and tremelimumab combination regimens: a systematic review and meta-analysis by Hiromi Matsumoto, Kohei Somekawa, Nobuyuki Horita, Suguru Ueda, Megumi Kaneko, Ayami Kaneko, Nobuhiko Fukuda, Ami Izawa, Chisato Kamimaki, Katsushi Tanaka, Kota Murohashi, Hiroaki Fuji, Yoichi Tagami, Ayako Aoki, Keisuke Watanabe, Yu Hara, Nobuaki Kobayashi and Takeshi Kaneko in Therapeutic Advances in Medical Oncology</p
Dialektyka natury i społeczeństwa przeciwko monizmowi. Esej recenzyjny z „Marx in the Anthropocene” Kohei Saita (2023, Cambridge University Press)
No full textThe article discusses Kohei Saito’s work Marx in the Anthropocene, placing it against the broader background of the discussion of Marx’s ecological thought and explaining the basic assumptions of metabolic scratch theory. The main thread of the book on which the author focuses, however, is Saito’s critique of contemporary ecocritical monist conceptions (binding the orders of nature and culture into a unity). As she shows, Marx’s methodological dualism is better able to identify ways out of the ecological crisis.Artykuł omawia pracę Marx in the Anthropocene Kohei Saita, umieszczając ją na szerszym tle dyskusji nad ekologiczną myślą Marksa oraz wyjaśniając podstawowe założenia teorii rysy metabolicznej. Głównym wątkiem książki, na którym skupia się autorka, jest jednak przeprowadzona przez Saita krytyka współczesnych ekokrytycznych koncepcji monistycznych (wiążących w jedność porządek natury i kultury). Jak pokazuje, metodologiczny dualizm Marksa lepiej pozwala określić drogi wyjścia z ekologicznego kryzysu
ChatGPT is not an author, but then, who is eligible for authorship?
No full textOn January 26, 2023, Science issued an editorial announcing that its journal policy would be changed to restrict artificial intelligences (AIs), such as ChatGPT, from being used to write papers, in addition to disallowing authorship of AIs. Indeed, AIs are not eligible for authorship because they do not have free will and they cannot make decisions to be an author. However, several observations have been made that researchers can use ChatGPT as an English proofreader, rather than a writer of first drafts. Therefore, we discussed the usage of AIs and the way of authorship, particularly, in terms of English proofreading. Then, we wrote an eLetter for that editorial, but its eLetter section suddenly disappeared, so we released the eLetter as a preprint with additional discussion. Although AIs are a double-edged sword and they could exacerbate scholarly publishing and science, they also have potentialities to remove language barriers and improve science all over the world. The present article claimed the importance of continuous discussion about the use of AIs and the language barriers
Effect of rare earth metal on the spin-orbit torque in magnetic heterostructures
No full textWe report the effect of the rare earth metal Gd on current-induced spin-orbit torques (SOTs) in perpendicularly magnetized Pt/Co/Gd heterostructures, characterized using harmonic measurements and spin-torque ferromagnetic resonance (ST-FMR). By varying the Gd metal layer thickness from 0 nm to 8 nm, harmonic measurements reveal a significant enhancement of the effective fields generated from the Slonczewski-like and field-like torques. ST-FMR measurements confirm an enhanced effective spin Hall angle and show a corresponding increase in the magnetic damping constant with increasing Gd thickness. These results suggest that Gd plays an active role in generating SOTs in these heterostructures. Our finding may lead to spin-orbitronics device application such as non-volatile magnetic random access memory, based on rare earth metals.National Science Foundation (U.S.) (NSF-ECCS-1408172
Magnetogenesis from a rotating scalar: à la scalar chiral magnetic effect
No full text© 2020, The Author(s). The chiral magnetic effect (CME) is a phenomenon in which an electric current is induced parallel to an external magnetic field in the presence of chiral asymmetry in a fermionic system. In this paper, we show that the electric current induced by the dynamics of a pseudo-scalar field which anomalously couples to electromagnetic fields can be interpreted as closely analogous to the CME. In particular, the velocity of the pseudo-scalar field, which is the phase of a complex scalar, indicates that the system carries a global U(1) number asymmetry as the source of the induced current. We demonstrate that an initial kick to the phase-field velocity and an anomalous coupling between the phase-field and gauge fields are naturally provided, in a set-up such as the Affleck-Dine mechanism. The resulting asymmetry carried by the Affleck-Dine field can give rise to instability in the (electro)magnetic field. Cosmological consequences of this mechanism are also investigated11Nsciescopu
Temperature dependence of spin-orbit torques across the magnetic compensation point in a ferrimagnetic TbCo alloy film
No full textThe temperature dependence of spin-orbit torques (SOTs) and spin-dependent transport parameters is measured in bilayer Ta/TbCo ferrimagnetic alloy films with bulk perpendicular magnetic anisotropy. We find that the dampinglike (DL)-SOT effective field diverges as temperature is swept through the magnetic compensation temperature (T[subscript M]), where the net magnetization vanishes due to the opposing contributions from the Tb and Co sublattices. We show that DL-SOT scales with the inverse of the saturation magnetization (M[subscript s]), whereas the spin-torque efficiency is independent of the temperature-dependent M [subscript s]. Our findings provide insight into spin transport mechanisms in ferrimagnets and highlight low-M [subscript s] rare-earth/transition-metal alloys as promising candidates for SOT device applications.National Science Foundation (U.S.) (NSF-ECCS-1408172
Who Uses Free Trade Agreements?
No full textIt is noted that utilization of ASEAN Free Trade Agreements (FTAs) is low by international standards. In order to clarify the reasons for such low utilization, this paper investigates what kinds of Japanese affiliates in ASEAN are more likely to use FTAs in their exporting, by employing unique affiliate-level data. Our findings are as follows. First, the larger the affiliate is, or the more diversified the origins of its procurements, the more likely it is to utilize an FTA scheme in its exporting. Second, affiliates that export actively to countries with higher general tariffs are more likely to use FTAs. Third, there are clear differences in FTA utilization depending affiliates, locations and sectors.
Effect of interface quality on spin Hall magnetoresistance in Pt/MgFe2O4 bilayers
No full textSugino M., Ueda K., Kida T., et al. Effect of interface quality on spin Hall magnetoresistance in Pt/MgFe2O4 bilayers. Applied Physics Express 17, 013003 (2024); https://doi.org/10.35848/1882-0786/ad0ba4.We report on spin Hall magnetoresistance (SMR) in bilayers composed of Pt and magnetic insulator MgFe2O4 (MFO) with spinel structure. The Pt thickness dependence of the SMR reveals that annealing of the MFO surface before depositing the Pt layer is crucial for a large SMR with better interface quality. We also found that oxygen pressure during the MFO growth hardly affects the SMR, while it influences the magnetic property of the MFO film. Our findings provide important clues to further understanding the spin transport at interfaces containing magnetic insulators, facilitating development of low power consumption devices
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