Publications by authors named "Shimoda S"

To clarify the adaptation strategies of cold-tolerant wheat against global warming, this study examined the effects of daily temperature, precipitation, and sunshine duration on wheat yield in Hokkaido, Japan, over 13 years (2011-2023). Yield components were also analyzed over 20 years (2004-2023). The number of snow-cover days decreased by about 24 days over the 20-year period.

View Article and Find Full Text PDF

Ulcerative colitis (UC) is a refractory, chronic inflammatory bowel disease of unknown etiology. Although platelets are activated in UC, their relevance in pathophysiology remains unclear. We analyzed the correlation of platelet activation and platelet-monocyte complexes (PMCs) with severity of mucosal inflammation using the Mayo endoscopic subscore (MES).

View Article and Find Full Text PDF

Schizophrenia is a psychiatric disorder characterized by cognitive dysfunctions. These dysfunctions significantly impact the daily lives of schizophrenic patients, yet effective interventions remain scarce. In this study, we explored the effects of two enriched housing types-cognitive and physical-on cognitive dysfunctions in a rat model of schizophrenia.

View Article and Find Full Text PDF

Hydrogel-based 3D cell cultures are extensively utilized to create biomimetic cellular microstructures. However, there is still lack of effective method for both evaluation of the complex interaction of cells with hydrogel and the functionality of the resulting micro-structures. This limitation impedes the further application of these microstructures as microphysiological models (microPMs) for the screening of potential culture condition combinations to enhance the skeletal muscle regeneration.

View Article and Find Full Text PDF

Time series analysis of overwintering cereals in snowy areas has revealed several phenological patterns associated with climate changes in winter. Herein, to investigate the recent effect of climatic variations on overwintering cereals, we investigated the phenology over multiple decades at three snowy region sites with an air temperature (T) increase trend of 0.48-1.

View Article and Find Full Text PDF

Recently, the relationship between the relative dose intensity (RDI) and efficacy was demonstrated for lenvatinib therapy in patients with advanced hepatocellular carcinoma (HCC), with a higher RDI of lenvatinib monotherapy indicating a higher efficacy. However, not every patient can tolerate a high RDI during the course of treatment; therefore, add-on combination therapy may be necessary for patients requiring a low RDI. The addition of transarterial chemoembolization (TACE) to lenvatinib therapy improves clinical outcomes.

View Article and Find Full Text PDF
Article Synopsis
  • Previous studies have found both shared and population-specific genetic factors contributing to primary biliary cholangitis (PBC), with more than 20 novel susceptibility loci identified in a recent meta-analysis across different populations.
  • A new genome-wide association study (GWAS) focused on the Japanese population identified the gene PTPN2 as a novel susceptibility gene for PBC, linking a specific variant (rs8098858) to the disease.
  • The risk allele (rs2292758) is shown to disrupt PTPN2 expression, leading to an impaired negative feedback mechanism in immune signaling, suggesting that targeting PTPN2 could be a promising approach for PBC treatment.
View Article and Find Full Text PDF
Article Synopsis
  • Optically active poly(naphthalene-1,4-diyl) was synthesized using two methods: helix-sense-selective polymerization and circularly polarized light (CPL) irradiation, showcasing unique spectral characteristics.* -
  • The chirality in the polymer from helix-sense-selective polymerization comes from a preferred handedness in its helical structure, while the CPL-based polymer adopts a stable non-helical chiral form only in solid state.* -
  • Both types of polymers demonstrated strong circularly polarized luminescence, with the helix of the polymer from helix-sense-selective polymerization becoming less stable in certain solvents but stabilized in a mixed hexane-dichlorometh
View Article and Find Full Text PDF

Antimicrobial peptides (AMPs) are present in a wide range of plants, animals, and microorganisms. Since AMPs are characterized by their effectiveness against emergent antibiotic-resistant bacteria, they are attracting attention as next-generation antimicrobial compounds that could solve the problem of drug-resistant bacteria. Persulcatusin (IP), an antibacterial peptide derived from the hard tick , shows high antibacterial activity against various Gram- positive bacteria as well as multidrug-resistant bacteria.

View Article and Find Full Text PDF

There is increasing interest in the antimicrobial activity of mannosylerythritol lipids-B (MEL-B) against Gram-positive bacteria such as Staphylococcus aureus (S. aureus). However, the specific molecules involved in MEL-B's antimicrobial action against S.

View Article and Find Full Text PDF
Article Synopsis
  • Brain function research has primarily focused on studying brain regions independently, but the interaction between these regions during tasks like voluntary motion is still poorly understood.
  • This study used fMRI to explore how the motor cortex, cerebellum, and visual cortex interact during target tracking tasks with and without visual feedback.
  • Findings revealed that visual feedback significantly influences connections among these brain regions, which can help explain individual differences in motor performance and may inform the development of personalized interventions in motor control technology.*
View Article and Find Full Text PDF

The development of calibration models using Raman spectra data has long been challenged owing to the substantial time and cost required for robust data acquisition. To reduce the number of experiments involving actual incubation, a calibration model development method was investigated by measuring artificially mixed samples. In this method, calibration datasets were prepared using spectra from artificially mixed samples with adjusted concentrations based on design of experiments.

View Article and Find Full Text PDF

Previous studies have demonstrated the potential of surface electromyography (sEMG) spectral decomposition in evaluating muscle performance, motor learning, and early diagnosis of muscle conditions. However, decomposition techniques require large data sets and are computationally demanding, making their implementation in real-life scenarios challenging. Based on the hypothesis that spectral components will present low inter-subject variability, the present paper proposes the foundational principles for developing a real-time system for their extraction by utilizing a pre-defined library of components derived from an extensive data set to match new measurements.

View Article and Find Full Text PDF

Introduction: The subjective experience of time can be influenced by various factors including voluntary actions. In our previous study, we found that the subjective time experience of an action outcome can be compressed when an individual performs a continuous action compared to a single action, suggesting that the sense of agency (SoA), the feeling of control over one's own action outcomes, contributes to the subjective time compression. We hypothesized that enhancing SoA by providing sensory feedback to participants would further compress the subjective time experience.

View Article and Find Full Text PDF

One-pot synthesis of niobium carbabide (NbC) nanoparticles with 30-50 nm was achieved a rationally designed novel alkali-molten salt method using niobium oxide (NbO), potassium carbonate (KCO), and mesoporous carbon (MPC). In this reaction, potassium niobate (KNbO) was produced as an intermediate and carbonization of KNbO proceeds at a spatially limited external surface encompassed by the mesopores of MPC due to the repulsive characteristics of ionic KNbO toward hydrophobic MPC, which affords the size-controlled NbC nanoparticles with a narrow particle distribution. The particle sizes tended to become smaller as the pore sizes of MPCs or the temperature on the calcination under the nitrogen stream decreased.

View Article and Find Full Text PDF

To investigate changes in subjective psychological factors and dietary intake during sleep restriction, we carried out a randomized crossover trial with a 3-day sleep restriction condition (SR; 5 h of sleep) and control sleep condition (CS; 8 h of sleep). Days 3 and 4 involved free-living and laboratory (in the morning) conditions, respectively. Subjective psychological factors (hunger, appetite, desire for sweets and fatty foods, sleepiness, and fatigue) were assessed using a 0.

View Article and Find Full Text PDF

In this paper, we propose a novel method for emulating rat-like behavioral interactions in robots using reinforcement learning. Specifically, we develop a state decision method to optimize the interaction process among 6 known behavior types that have been identified in previous research on rat interactions. The novelty of our method lies in using the temporal difference (TD) algorithm to optimize the state decision process, which enables the robots to make informed decisions about their behavior choices.

View Article and Find Full Text PDF

Optically active, hyperbranched, poly(fluorene-2,4,7-triylethene-1,2-diyl) [poly(fluorenevinylene)] derivatives bearing a neomenthyl group and a pentyl group at the 9-position of the fluorene backbone at various ratios acted as a chirality donor (host polymers) efficiently included naphthalene, anthracene, pyrene, 9-phenylanthracene, and 9,10-diphenyanthracene as a chirality acceptor (guest molecules) in their interior space in film as well as in solution, with the guest molecules exhibiting intense circular dichroism through chirality transfer with chirality amplification. The efficiency of the chirality transfer was much higher with higher-molar-mass polymers than lower-molar-mass ones as well as with hyperbranched polymers compared to the analogous linear ones. The hyperbranched polymers include the small molecules in their complex structure without any specific interactions at various stoichiometries.

View Article and Find Full Text PDF

Transhumeral amputees experience considerable difficulties with controlling a multifunctional prosthesis (powered hand, wrist, and elbow) due to the lack of available muscles to provide electromyographic (EMG) signals. The residual limb motion strategy has become a popular alternative for transhumeral prosthesis control. It provides an intuitive way to estimate the motion of the prosthesis based on the residual shoulder motion, especially for target reaching tasks.

View Article and Find Full Text PDF

Objective: In this study, we propose a method for removing artifacts from superficial electromyography (sEMG) data, which have been widely proposed for health monitoring because they encompass the basic neuromuscular processes underlying human motion.

Methods: Our method is based on a spectral source decomposition from single-channel data using a non-negative matrix factorization. The algorithm is validated with two data sets: the first contained muscle activity coupled to artificially generated noises and the second comprised signals recorded under fully unsupervised conditions.

View Article and Find Full Text PDF
Article Synopsis
  • - The study created a method to build Raman calibration models for monitoring cell cultures without needing traditional culture data, using Raman spectra to analyze various analytes such as glucose, lactate, and antibodies.
  • - Researchers collected and processed spectral data from samples mixed with the analytes and optimized the calibration models by comparing different pretreatments and wavenumber regions.
  • - The resulting calibration model demonstrated good accuracy for measuring glucose, lactate, and antibodies in cell cultures, achieving low prediction errors (RMSEP values of 0.23, 0.29, and 0.20 g/L).
View Article and Find Full Text PDF

Immune-related adverse events (irAE) has been clarified according the usage of immune checkpoint inhibitors(ICI). We primarily found indoleamine 2,3-dioxygenase 1(IDO-1) as a histologic biomarker for the cholangiopathy of primary biliary cholangitis(PBC). In this study, we evaluated the utility of IDO-1 in identifying ICI-induced immune-mediated hepatotoxicity(IMH).

View Article and Find Full Text PDF

Aims: This study determined the relationship between intra-individual variability in day-to-day nutrition-related lifestyle behaviors (meal timing, eating window, food intake, movement behaviors, sleep conditions, and body weight) and glycemic outcomes under free-living conditions in adults without type 2 diabetes.

Methods: We analyzed 104 adults without type 2 diabetes. During the 7-day measurement period, dietary intake, movement behaviors, sleep conditions, and glucose outcomes were assessed.

View Article and Find Full Text PDF

is one of the most important pathogens in humans as well as in livestock. Particularly, bovine mastitis caused by is a serious issue in dairy farms due to disease recurrence. Here, cases of -mediated intramammary infection occurring in the Miyagi Prefecture in Japan were monitored from May 2015 to August 2019; a total of 59 strains (49 from bovine milk and 10 from bulk milk) were obtained from 15 dairy farms and analyzed via sequence-based typing methods and antibiotic susceptibility tests.

View Article and Find Full Text PDF

Objective: The challenges of an aging population worldwide are the increased number of people needing medical and nursing care and inadequate medical resources. Information and communication technologies have progressed remarkably, leading to innovations in various areas. 5G communication systems are capable of high-capacity, high-speed communication with low latency and are expected to transform medicine.

View Article and Find Full Text PDF