948 results match your criteria: "The University of Electro- Communications[Affiliation]"

: Internet use positively impacts mental health in older adults, with health literacy (HL) playing a key role. While social networks may complement individual HL, the role of neighborhood relationships in this association, particularly by gender, remains unclear. This study examined how the association between HL and Internet use among older adults was modified by neighborhood relationships.

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Hydrogen isotope separation at exceptionally high temperature using an unsaturated organometallic complex.

Dalton Trans

January 2025

Department of Chemistry, Graduate School of Science, Tohoku University, 6-3 Arama-ki-Aza-Aoba, Aoba-ku, Sendai 980-8578, Japan.

A new approach for hydrogen isotope separation using an unsaturated organometallic complex was proposed. Adsorption measurements of [Mn(dppe)(CO)(N)](BArF) (Mn-dppe) (dppe = 1,2-bis(diphenylphosphino)ethane, BArF = B[CH(3,5-CF)]) using H and D revealed a significant difference in the adsorption enthalpy of H/D at much higher room temperatures than in previous studies, with D molecules being more strongly adsorbed on unsaturated metal sites. Mixed gas adsorption isotherms were calculated at each temperature using IAST, and it was predicted that D uptake was much larger than H uptake.

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Retraction.

Sci Adv

January 2025

Department of Molecular Bacteriology, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamada-oka, Suita, Osaka 565-0871, Japan.

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Controlling the Hierarchical Assembly of DNA-Based Hexagonal Microstructures.

Small

December 2024

Department of Engineering Science, Graduate School of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo, 182-8585, Japan.

This paper discusses the controlled morphology of hierarchical liquid crystalline DNA assemblies. Through a process of heating and slow cooling, double-stranded DNAs (dsDNAs) having 23 complementary bases and two base overhangs (a pair of 25mer oligonucleotides) spontaneously assemble into micro-sized hexagonal platelets in a solution containing poly(ethylene glycol) (PEG) and salt. Remarkably, the addition of a shorter dsDNA with AA/TT overhangs (a pair of 18mer oligonucleotides) to a PEG-salt solution of 25mer DNA with AA/TT overhangs results in the formation of molecular tubes, each with a central blockage.

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RF Energy Harvesting and Wireless Power Transfer for IoT.

Sensors (Basel)

November 2024

Graduate School of Informatics and Engineering, The University of Electro-Communications, Tokyo 183-8585, Japan.

The rapid proliferation of the Internet of Things (IoT) has transformed modern living by interconnecting billions of devices across industrial, commercial, and domestic sectors [...

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Frailty is a growing public health challenge in Japan's rapidly aging population, where 28.8% are aged ≥ 65. While multicomponent interventions have shown potential in preventing frailty, traditional face-to-face programs face accessibility challenges.

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The chemiluminescence (CL) feature and reactivity of the aromatic endoperoxide 9-phenyl-10-(2-phenylethynyl)anthracene endoperoxide (PPEA-O) were investigated in the crystalline state. For this, PPEA-O crystals were prepared using dichloromethane and -hexane. These crystals exhibited an α-phase structure containing -hexane as a crystal solvent.

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Neural stem cells (NSCs) can give rise to both neurons and glia, but the regulatory mechanisms governing their differentiation transitions remain incompletely understood. Here, we address the role of cyclin-dependent kinase inhibitors (CDKIs) in the later stages of dorsal cortical development. We find that the CDKIs p18 and p27 are upregulated at the onset of astrocyte generation.

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Intra- and inter-channel deep convolutional neural network with dynamic label smoothing for multichannel biosignal analysis.

Neural Netw

December 2024

Department of Mechanical Engineering and Intelligent System, the University of Electro-Communications, Tokyo, Japan; Center for Neuroscience and Biomedical Engineering, the University of Electro-Communications, Tokyo, Japan. Electronic address:

Article Synopsis
  • Efficient processing of multichannel biosignals is vital for healthcare and human-machine interaction, but existing methods face challenges in feature extraction, model complexity, and generalization to new data.
  • The proposed solution is a 1D-based deep intra and inter channel (I2C) convolutional neural network that improves feature extraction while reducing the number of parameters needed.
  • The I2C model shows improved accuracy and generalization in experiments conducted on public biosignal databases, demonstrating its effectiveness over traditional methods.
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In this session, six invited speakers presented their innovative research to investigate the structure and dynamics of bacterial and archaeal supramolecular assembly systems. They explained their research from the perspective of bacterial genetics, molecular biology, biochemistry, biophysics, structural biology, cell biology, microscopy imaging, and molecular dynamics simulation. The session started with a section on the mechanism of pilus assembly in cyanobacteria.

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Background/objectives: Elastography increased the diagnostic accuracy of liver fibrosis. However, several challenges persist, including the widespread utilization of equipment, difficulties in measuring certain cases, and the influence of viscosity factors. A rough surface and a blunted hepatic margin have long been acknowledged as valuable characteristics indicative of hepatic fibrosis.

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  • Resistance exercise impacts gene expression in skeletal muscle by both increasing and decreasing various genes, but detailed studies on how these changes occur over time have been limited.
  • In this study, researchers used electrical stimulation to induce muscle contractions in rats and analyzed the changes in muscle transcriptome at different time points after exercise to understand mRNA dynamics.
  • The results showed that genes involved in muscle growth and mechanical response displayed varying patterns of upregulation, and the level of mRNA expression was positively linked to protein synthesis 12 hours post-exercise, highlighting the importance of mRNA dynamics in muscle adaptation.
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Turning on Low-Temperature Catalytic Conversion of Biomass Derivatives through Teaming Pd and Mo Single-Atom Sites.

J Am Chem Soc

November 2024

Center for Environmental Beneficial Catalysis and Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States.

On-purpose atomic scale design of catalytic sites, specifically active and selective at low temperature for a target reaction, is a key challenge. Here, we report teamed Pd and Mo single-atom sites that exhibit high activity and selectivity for anisole hydrodeoxygenation to benzene at low temperatures, 100-150 °C, where a Pd metal nanoparticle catalyst or a MoO nanoparticle catalyst is individually inactive. The catalysts built from Pd or Mo single-atom sites alone are much less effective, although the catalyst with Pd sites shows some activity but low selectivity.

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ARCaDia: single-round screening of a DNA-type targeted covalent binder possessing a latent warhead.

Chem Commun (Camb)

December 2024

Department of Engineering Science, The Graduate School of Informatics and Engineering, The University of Electro-Communications (UEC), 1-5-1 Chofugaoka, Chofu, Tokyo 182-8585, Japan.

A covalent binder for a target protein was obtained by a direct single-round screening of a latent-warhead-modified DNA library affinity/reactivity-based co-selection of aptameric deoxyribonucleic acid (ARCaDia), followed by a top -mer analysis. The optimal position of the conjugated warhead on the selected aptamer was simultaneously identified.

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The title compound was synthesized, and ESR and magnetic analysis revealed diamagnetic properties below 400 K. The crystal structure analysis clarified that the molecule possesses an approximate symmetry with a head-to-tail (N-O) four-membered ring. The N···O distances are 2.

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Using radar for non-contact measuring human vital signs has garnered significant attention due to its undeniable benefits. However, achieving reasonably good accuracy in contactless measurement senarios is still a technical challenge.The proposed method includes two stages.

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Language Development of Japanese Children Raised in Institutional Care.

Child Care Health Dev

November 2024

NTT Communication Science Laboratories, NTT Corporation, Kyoto, Japan.

Background: Nurturing environments have a critical influence on children's language development. It is unclear to what extent nurturing environments in institutions influence children's language development.

Methods: The present study investigated the early lexical development in Japanese children raised in institutional care (IC) (N = 86; 10-33 months; 37 boys) and compared their lexical skills to a large sample of age peers being raised in biological family care (BFC) (N = 1897; 937 boys) using vocabulary checklists.

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Bayesian estimation of trunk-leg coordination during walking using phase oscillator models.

Neurosci Res

October 2024

Graduate School of Informatics, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan.

In human walking, the legs and other body parts coordinate to produce a rhythm with appropriate phase relationships. From the point of view for rehabilitating gait disorders, such as Parkinson Disorders, it is important to understand the control mechanism of the gait rhythm. A previous study showed that the antiphase relationship of the two legs during walking is not strictly controlled using the reduction of the motion of the legs during walking to coupled phase oscillators.

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Statistical physical view of statistical inference in Bayesian linear regression model.

Phys Rev E

September 2024

Department of Computer and Network Engineering, Graduate School of Informatics and Engineering, The University of Electro-Communications, 1-5-1 Chofugaoka, Chofu-shi, Tokyo 182-8585, Japan.

This paper considers similarities between statistical physics and Bayes inference through the Bayesian linear regression model. Some similarities have been discussed previously, such as the analogy between the marginal likelihood in Bayes inference and the partition function in statistical mechanics. In particular, this paper considers the proposal to associate discrete sample size with inverse temperature [C.

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Graph Contrastive Learning (GCL) generates graph-level embeddings by maximizing Mutual Information between different augmented views of the same graph (positive pairs), and shows promising performance in graph representation learning (GRL) without the supervision of manual annotations. However, GCL suffers from a dimensional collapse problem, i.e.

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Article Synopsis
  • The modification of N4-acetylcytidine (ac4C) in RNA is important for regulating gene expression, but traditional detection methods are complicated and expensive, highlighting the need for better computational tools.
  • The authors developed DPNN-ac4C, a dual-path neural network that effectively identifies ac4C sites in mRNA by combining various advanced techniques, achieving impressive accuracy and robustness against attacks.
  • The model and related resources are accessible on GitHub, allowing other researchers to use and build upon their work.
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  • Skeletal muscle atrophy, often caused by muscle disuse, significantly affects quality of life, particularly in older adults and those with chronic illnesses, highlighting the need for understanding its molecular mechanisms for better treatment options.
  • The study investigated the roles of vascular endothelial growth factor (VEGF) and specific microRNAs (miRNAs) in muscle atrophy using a denervation model in mice, analyzing gene expression changes and regulatory networks.
  • Findings showed that denervation led to reduced muscle weight and altered gene expression, with VEGF and certain miRNAs being key regulatory factors, suggesting they may be promising targets for therapies aimed at combating muscle atrophy.
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The flagellar motors of Campylobacter jejuni (C. jejuni) and related Campylobacterota (previously epsilonproteobacteria) feature 100-nm-wide periplasmic "basal disks" that have been implicated in scaffolding a wider ring of additional motor proteins to increase torque, but the size of these disks is excessive for a role solely in scaffolding motor proteins. Here, we show that the basal disk is a flange that braces the flagellar motor during disentanglement of its flagellar filament from interactions with the cell body and other filaments.

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Introduction: In this study, we harnessed three cutting-edge algorithms' capabilities to refine the elbow fracture prediction process through X-ray image analysis. Employing the YOLOv8 (You only look once) algorithm, we first identified Regions of Interest (ROI) within the X-ray images, significantly augmenting fracture prediction accuracy.

Methods: Subsequently, we integrated and compared the ResNet, the SeResNet (Squeeze-and-Excitation Residual Network) ViT (Vision Transformer) algorithms to refine our predictive capabilities.

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