University of Tsukuba

Artificial hibernation reveals synaptic engram architecture associated with memory retention

Memories leave lasting physical changes at the synaptic level. Although stable, larger spines are thought to support memory, the high turnover of dendritic spines and the drifting of neuronal representations after memory formation suggest alternative possibilities. To elucidate t...

High-Spatial-ResolutionNear-Infrared ThermographyUsing an Uncooled Silicon-Based Camera

Abstract The demand for noncontact temperature measurements is growing as the microelectronic features to be probed become progressively smaller. However, traditional thermal imaging with infrared cameras is fundamentally constrained by the micron-long wavelength of thermal emiss...

Machine-Learning Analysis of the Electronic Structure of Atomically Thin MnTe Films from Scanning Tunneling Spectroscopy

Layered two-dimensional (2D) van der Waals magnetic crystals based on 3d transition metals and chalcogenides are typically synthesized by chemical vapor transport, while establishing epitaxial, layer-by-layer growth under vacuum remains essential for device applications. Here, we...

Gut microbial and metabolic biomarkers for early-onset colorectal cancer

Early-onset colorectal cancer (EO-CRC) is a growing global health challenge with poorly understood etiology. While gut microbiota and metabolites are implicated in colorectal carcinogenesis, EO-CRC-associated signatures remain poorly characterized. This study presents the first l...

Origin of the Eleusine indica population on the active volcanic Nishinoshima Island, Japan

Nishinoshima Island, located approximately 1,000 km south of mainland Japan and 130 km from the Ogasawara Islands, emerged as a new island due to volcanic activity in 1973. On this isolated island, grasses such as Eleusine indica and Portulaca oleracea have been observed growing,...

Spatial control of PEG-lipid interfaces at cell surface enables on-demand adhesion and enzymatic detachment of suspension cells

Suspension cells are widely used in biomedical research and cell-based therapies; however, their lack of stable adhesion to substrates limits their efficient handling, including gene delivery and downstream processing. Although surface engineering approaches have been studied to...

Real-world safety and effectiveness of olaparib maintenance after first-relapse platinum-sensitive ovarian cancer in Japan: a multicenter historical cohort (JGOG3026)

OBJECTIVE: The primary objective of the study was to evaluate the safety and effectiveness of olaparib maintenance therapy in Japanese patients with platinum-sensitive first-relapsed ovarian cancer. The secondary objective was to survey the treatment given after the olaparib main...

Pressure-SelectiveMagnetic Switching via SpatiallySeparated Soft Interlayer and Rigid Charge-Transfer Intralayer

Abstract We report a pressure-responsive molecule-based magnet featuring a layered cyanido-bridged Co–W assembly, [{CoII(4-phenoxypyridine)4}3{WV(CN)8}2], exhibiting a distinct pressure-selective magnetic behavior. The compound forms two-dimensional charge-transfer layers with la...

Linear Pentanuclear 3d–4f M‐Gd‐M‐Gd‐M Complexes Prepared From a One‐Pot Reaction Show Intramolecular Ferromagnetic Interactions (M = Cu, Ni, and Co)

Three novel 3d–4f pentanuclear complexes, [Cu II 3 Gd III 2 (L) 4 (NO 3 ) 4 (H 2 O) 8 ] ( [Cu 3 Gd 2 ] ), [Ni II 3 Gd III 2 (L) 4 (NO 3 ) 4 (H 2 O) 8 ] ( [Ni 3 Gd 2 ] ), and [Co II 3 Gd III 2 (L) 4 (NO 3 ) 4 (H 2 O) 8 ] ( [Co 3 Gd 2 ] ), were synthesized via one‐pot reactions usi...

Associations of Happiness, Ikigai, and Enjoyment of Daily Life with Frequency of Forest Walking in a Japanese General Population: The Japan Multi-Institutional Collaborative Cohort Daiko Study

A number of studies have examined the acute effects of shinrin-yoku (forest bathing), or forest walking; however, only a limited number of epidemiological studies have examined the association between habitual forest walking and daily health. The aim of this study was to examine...

Decoupling Electronic Activation and Pore Connectivity in Acidic Oxygen Reduction on Metal‐Free Biomass‐Derived Carbon Catalysts

Acidic oxygen reduction is often discussed as if catalytic activation and mass transport were inseparable. Here, biomass‐derived carbon was used to examine these contributions through oxidation, ammonia annealing, and KOH activation. The onset potential is associated primarily wi...

Association between coronary high-intensity plaque and pericoronary adipose tissue attenuation and plaque morphology

Background: This study aimed to investigate the association between high-intensity plaque (HIP) on cardiac magnetic resonance (CMR) imaging and pericoronary adipose tissue attenuation (PCATA) and plaque burden on coronary computed tomography angiography (CCTA) in patients with ch...

Deformation mechanisms and rheology of chlorite-actinolite schist and blueschist: Implications for creep behavior along the slab-mantle interface

Chlorite-actinolite schist (CAS) and blueschist represent major lithologies along the subduction plate boundary at the slab-mantle interface, yet their deformation mechanisms and rheological properties remain poorly constrained. We investigated a subduction melange in western Kyu...

Season-robust localization for autonomous robot in orchard using two-stage LiDAR points segmentation with sensor fusion

A robust cross-season, multi-route localization framework is proposed for agricultural environments with significant seasonal variations. Based on intensity-calibrated maps constructed across four seasons, a two-stage point segmentation method is employed to extract geometrically...

Impact of Kuala Lumpur as a tropical city on cloud formation: Numerical experiments using the WRF-UCM model

Previous satellite-based studies have shown that Greater Kuala Lumpur (GKL) consistently exhibits a higher cloud frequency than surrounding rural areas. To investigate the underlying mechanisms, numerical experiments were conducted using the Weather Research and Forecasting (WRF)...

L2K-ARG

Abstract The present study introduces an open-access corpus of Korean second language argumentative writing (L2K-ARG) produced by university-level learners with different first-language backgrounds. The corpus contains 484 essays written in response to three standardized prompts...