The University of Tokyo

The Relationship Between Selective Serotonin Reuptake Inhibitor Use and Delayed Bleeding After Colorectal Endoscopic Resection: A Nationwide Retrospective Cohort Study

Selective serotonin reuptake inhibitors (SSRIs) are associated with an increased risk of gastrointestinal bleeding. However, their effect on delayed bleeding after colorectal endoscopic resection (CER) remains unclear. We evaluated the association between SSRI Use and delayed ble...

Frequency-dependent shear and bulk viscosity of aqueous and non-aqueous lithium battery electrolytes

Transverse ultrasound was used to examine the frequency-dependent shear viscosities of three lithium bis(trifluoromethanesulfonyl)imide-based electrolytes: aqueous, non-aqueous, and hybrid aqueous-organic solutions. Frequency-dependent bulk viscosities of two of the electrolytes...

Patient-derived organoids for modeling therapy tolerance, persistence, and resistance in cancer

Therapy resistance remains a major obstacle to durable cancer control. Across cytotoxic chemotherapy, molecularly targeted therapy, immunotherapy, endocrine therapy, and cellular therapy, treatment failure may manifest as primary nonresponse, residual disease, reversible regrowth...

Beyond Intrinsic Oxidation Activity: Charge-Distributed Reaction Fields in Polyoxometalate-Based Porous Ionic Crystals

Abstract Molecular catalysts assembled into solids can exhibit catalytic properties beyond those of their individual components, yet the origin of this enhancement is often unclear. Here, we address this issue using porous ionic crystals (PICs) based on polyoxometalates (POMs). T...

Ratiometric Luminescent Thermo‐Hygrometry, Metal‐Dependent Second Harmonic Generation, and Humidity‐Variable Magnetic Relaxation in a Manganese(II)‐Doped Zinc(II) Molecular Halide

ABSTRACT Molecular materials based on metal complexes can link optical, electrical, and magnetic properties, all sensitive to external stimuli. This feature opens a pathway for their exploration as highly efficient sensors and advanced switches. We report the synthetic strategy f...

Impact of seed node position on network robustness under localized attacks

Localized attacks (LAs), where damage propagates from a single seed node to its neighbors, pose significant threats to the robustness of complex networks. Although previous studies have extensively analyzed network vulnerability under such attacks, they typically assume random se...

JuRa: The Juventas Radar on Hera Mission to Probe Internal Structure of Didymos and Dimorphos Asteroids

Abstract JuRa, the Juventas Radar, is the sounding radar of the Hera/ESA mission on cruise to the asteroid Didymos and its moon, Dimorphos. In 2027, it will, for the first time, do direct observation of the internal structure of an asteroid for the benefit of both science and pla...

Helicity‐Dependent All‐Optical Switching in Bi,Ga‐Substituted Rare‐Earth Iron Garnet Films Driven by Orbital Magnetic Moment

ABSTRACT All‐optical magnetization switching (AOS) is a promising phenomenon for applications such as high‐speed optical modulation technologies, as it enables magnetization switching using only ultrashort laser pulses. AOS induced by circularly polarized light is demonstrated in...

Statistical quantification of potential impacts of upper-ocean stratification on tropical cyclone-induced sea surface cooling in the western North Pacific

Abstract Using high-resolution reanalysis products and observed tropical cyclones (TCs) in the western North Pacific during July-October from 1994 to 2015, this study investigates the relative importance of TC intensity and upper-ocean stratification in controlling sea surface co...

Turn the Canon EOS M5 into a Clean HDMI Camera: Configuring Clean HDMI Output with a Canon Basic Script (Windows/macOS)

The Canon EOS M5 overlays shooting information on its HDMI output, which makes it awkward to use as a webcam. This technical note documents how to obtain clean HDMI output using a Canon Basic script published on the CHDK forum. The camera firmware is not modified, and the effect...

Upcycling waste concrete powder into cement-free construction materials through low-dosage micron-sized polyethylene and hot-pressing

Massive quantities of concrete waste and polyethylene (PE) waste are generated annually, yet both remain underutilized. Previous studies showed that carbonation-induced CaCO 3 crystal bridges enhanced interparticle bonding and strength of compacted recycled concrete material, but...

Turn the Canon EOS M5 into a Clean HDMI Camera: Configuring Clean HDMI Output with a Canon Basic Script (Windows/macOS)

The Canon EOS M5 overlays shooting information on its HDMI output, which makes it awkward to use as a webcam. This technical note documents how to obtain clean HDMI output using a Canon Basic script published on the CHDK forum. The camera firmware is not modified, and the effect...

The Cloud Feedback Model Intercomparison Project (CFMIP) contribution to CMIP7

Cloud processes constitute one of the key uncertainties for climate change projections. The fourth iteration of the Cloud Feedback Model Intercomparison Project, CFMIP4, contributes to the Coupled Model Intercomparison Project phase 7 (CMIP7), by providing a set of global climate...

Evaluation of clinical performance of artificial intelligence-assisted measurement of thoracic aortic diameter on non-contrast CT

This study aimed to evaluate the clinical performance of artificial intelligence (AI)-assisted measurement of thoracic aortic diameter on non-contrast computed tomography (NCCT). This single-center prospective study included 79 patients (mean age = 70 ± 13 standard deviation; 46...

Epidemiology and treatment outcomes of bone and soft tissue sarcoma in pediatric and adolescent and young adult patients in Japan: data from population-based National Cancer Registry 2016–2019

This Japanese population-based retrospective study using National Cancer Registry data (2016-2019) revealed age-specific disparities in treatment and outcomes of bone and soft tissue sarcomas in patients under 40 years. A total of 1,209 bone sarcoma (BS) and 3,096 soft tissue sar...

Identification and morphological characteristics of a fingernail clam Sphaerium nucleus (Mollusca: Sphaeriidae) newly recorded from Japan

Sphaerium nucleus is a freshwater clam species of the family Sphaeriidae, distributed from Europe to Central Asia. Through morphological and genetic analyses of recently collected specimens, the present study reports the first occurrence of S. nucleus in eastern Hokkaido, Japan....

Energy offsets between the Er 3+ 4 f -states and the GaAs energy levels important for photon ratchet intermediate-band solar cells

The lifetime of the carriers present in the intermediate bands is short, and thus an additional band at slightly lower energies is introduced in photon ratchet intermediate-band solar cells to reduce the impact of the intermediate-band lifetime. This so-called ratchet band should...

Estimation of auroral emission altitude in the region of the ISS magnetic footprint during a relativistic electron precipitation event observed by ISS-CALET

We report a multi-MeV relativistic electron precipitation (REP) event as observed by the CALorimetric Electron Telescope and the Monitor of All-sky X-ray Image aboard the International Space Station, together with low-cost twin all-sky auroral imagers installed at Athabasca, Cana...

Optimization of coarsened exact matching through random forest classification

Abstract Background Coarsened exact matching (CEM) was developed to resolve the “matching paradox” in propensity score matching (PSM), where narrower caliper widths can paradoxically worsen covariate balance. However, its application to complex medical data faces practical challe...

Time-Dependent UV/Ozone Treatment Modulates Platelet Adhesion on Polystyrene and Cyclo-Olefin Polymer through Fibrinogen Orientation

Abstract UV/ozone (UVO) treatment is a versatile, solvent-free approach for modifying polymer surfaces in biomedical applications. Although its effects on RGD-dependent cell adhesion have been extensively studied, the mechanisms underlying non-RGD-dependent interactions, specific...