Hikaru Takeuchi

Thermally stable and tunable hydride-ion incorporation in Sc-doped BaZrO₃

Itsuki Yaegashi, Itaru Oikawa, Akihiro Ishii, Hikaru Takeuchi et autres

Hydride ions (H⁻) endow oxides with various functionalities such as catalytic activity and superconductivity. However, precise control of the H⁻ content is difficult because introduction of H⁻ depends on the reduction of transition-metal cations, which is governed not only by thermodynamic parameters …

jp (code pays fourni par la source)

Redox-Neutral Interstitial Hydride Incorporation in Ruddlesden–Popper Oxides

Daichi Kato, Shuhei Ueda, Tong Zhu, Hiroki Ubukata et autres

Perovskite oxyhydrides exhibit diverse functionalities, yet their compositional space remains limited because conventional topochemical hydridation relies on the reduction of transition-metal cations. Here, we report a redox-neutral topochemical route to Ruddlesden–Popper (RP) oxyhydrides based on an O 2– /2H – exchange reaction …

jp, fr (code pays fourni par la source)

Dimensional association between ADHD traits and gray matter volume in young adults: A voxel‐based morphometry study

Haruka Asaoka, Michio Takahashi, Kentaro Oba, Hikaru Takeuchi et autres

Abstract Aim Prior structural magnetic resonance imaging (MRI) studies of attention‐deficit/hyperactivity disorder (ADHD) have primarily focused on clinically diagnosed samples, whereas the neuroanatomical correlates of dimensional ADHD traits in healthy young adults (aged 18–27 years) remain insufficiently characterized, and it is unclear …

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Reductive-defect-suppressed titanium oxynitrides via Ca 3 N 2 -assisted topochemical nitridation

Yuki Sasahara, Kento Yoshii, Daichi Kato, Issei Yamamoto et autres

One-step, ammonia-free topochemical nitridation using Ca 3 N 2 enables 3O 2− /2N 3− anion exchange from BaTiO 3 while suppressing Ti 3+ -related reductive defects, yielding bright-orange oxynitrides.

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Thermally stable and tunable hydride-ion incorporation in Sc-doped BaZrO 3

Itsuki Yaegashi, Itaru Oikawa, Akihiro Ishii, Hikaru Takeuchi et autres

H − was precisely introduced into Sc-doped BaZrO 3 , and H − compensated by the acceptor remained stable at temperatures above 800 °C. NMR showed a linear relationship between H − content and Sc-doping levels, and a preference for cis coordination.

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Temporal and Prefecture-Level Correlates of Excess Mortality in Japan, 2020-2024

Hikaru Takeuchi

The RELN heterozygous single-nucleotide polymorphism rs362691 increases the prefrontal cortical thickness and modulates systemizing-related autistic tendencies in typically developing children and adolescents

Hiroki R. Sato, Mitsunari Abe, Hikaru Takeuchi, Hiroaki Tomita et autres

Reelin, a glycoprotein, plays an essential role in the development and maturation of neural circuits in the cerebral cortex during embryonic and postnatal stages. Animal and human studies suggest that insufficient reelin signaling due to RELN mutations may alter the functional properties …

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Suppression of Deactivation of Working Memory and Promotion of Activation of Sustained Attention in the Default Mode Network Are Affected by Schizotypy in a Large Sample of Nonclinical Subjects

Seishu Nakagawa, Hikaru Takeuchi, Yasuyuki Taki, Ryoichi Yokoyama et autres

INTRODUCTION: Schizotypy is a personality trait characterized by subclinical expression of the signs and symptoms of schizophrenia. Maladaptive schizotypy is given the clinical designation of schizotypal personality disorder. Previous studies have shown that functional disturbance of the default mode network (DMN) is …

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The Polygenic Risk Score for Parkinson’s Disease Is Associated with Becoming a Medical Doctor or Dentist

Hikaru Takeuchi, Ryuta Kawashima

BACKGROUND/OBJECTIVES: Multiple independent studies indicate an association between the occupations of medical doctors and dentists and the risk of Parkinson's disease (PD). This study tried to evaluate the associations between a polygenic risk score (PRS) for Parkinson's disease (PD) and medical career …

jp (code pays fourni par la source)

Dynamic switching between brain networks predicts creative ability

Qunlin Chen, Yoed Nissan Kenett, Zaixu Cui, Hikaru Takeuchi et autres

Creativity is hypothesized to arise from a mental state which balances spontaneous thought and cognitive control, corresponding to functional connectivity between the brain's Default Mode (DMN) and Executive Control (ECN) Networks. Here, we conduct a large-scale, multi-center examination of this hypothesis. Employing …

us, cn, il, jp, at, gb (code pays fourni par la source)

Author response for "Suppression of Deactivation of Working Memory and Promotion of Activation of Sustained Attention in the Default Mode Network Are Affected by Schizotypy in a Large Sample of Nonclinical Subjects"

Seishu Nakagawa, Hikaru Takeuchi, Yasuyuki Taki, Ryoichi Yokoyama et autres

Appropriate Parenting Style to Improve Offspring’s Creativity Differs Depending on the Offspring’s Empathizing–Systemizing Cognitive Style: A Voxel‐Based Morphometry Study

Radiztia Ekayantri Zulkifli, Yasuko Tatewaki, Hikaru Takeuchi, Diptarama Hendrian et autres

Previous research by Mehrinejad et al. found that parenting style affects offspring's brain development which later determines their creativity. They show that there is a significant positive relationship between authoritative parenting style and creativity. Meanwhile, neuroimaging studies by Takeuchi et al. have …

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