179 results match your criteria: "Nagoya University Nagoya[Affiliation]"

Previous studies have described two distinct vascular systems in cetacean fins. However, these studies have been limited to Delphinoidea species, with little information on their three-dimensional structures. In this study, the anatomical analysis of the caudal and dorsal fins of a dwarf sperm whale was conducted using X-ray computed tomography and gross dissection with staining, providing the first confirmation of the two vascular systems in the fins of the family Kogiidae.

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A carbon-based bifunctional heterogeneous enzyme: toward sustainable pollution control.

Chem Sci

September 2024

Henan International Joint Laboratory of Green Low Carbon Water Treatment Technology and Water Resources Utilization, School of Municipal and Environmental Engineering, Henan University of Urban Construction Pingdingshan Henan 467036 China

Article Synopsis
  • The study introduces an innovative immobilized functional enzyme (IFE) designed to improve efficiency and stability in various applications, overcoming challenges faced by traditional carriers that diminish enzyme activity.
  • It focuses on a carbon-based bifunctional heterogeneous enzyme (MIP-AMWCNTs@lipase) specifically created to detect and remove di(2-ethylhexyl)phthalate (DEHP), a widely used plasticizer, achieving a 94.2% removal rate.
  • The research also proposes a new kinetic model for better understanding enzyme reactions, enhancing its significance for biomaterials and environmental science.
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A T217M heterozygous mutation in the SLC22A12 gene caused renal hypouricemia; this patient with IgA nephropathy had no findings other than IgA nephropathy on renal biopsy. Hypouricemia was susceptible to oxidative stress, but IgA nephropathy in the patient with hypouricemia could be treated with steroid pulse therapy without adverse events.

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Hypothalamic control of torpor and hibernation.

Temperature (Austin)

April 2024

Department of Neural Regulation, Research Institute of Environmental Medicine, Nagoya University Nagoya, Aichi, Japan.

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Arabinogalactan proteins (AGPs) are plant-specific glycoproteins involved in cellular mechanics and signal transduction. There has been major progress in understanding the structure, synthesis, and molecular functions of their carbohydrate chains; however, the mechanisms by which they function as signalling molecules remain unclear. Here, methyl-glucuronosyl arabinogalactan (AMOR; Me-GlcA-β(1,6)-Gal), a disaccharide structure at the end of AGP carbohydrate chains, was oligomerised chemical synthesis.

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Prussian blue analogues (PBAs), representing the typical faradaic electrode materials for efficient capacitive deionization (CDI) due to their open architecture and high capacity, have been plagued by kinetics issues, leading to insufficient utilization of active sites and poor structure stability. Herein, to address the conflict issue between desalination capacity and stability due to mismatched ionic and electronic kinetics for the PBA-based electrodes, a rational design, including Mn substitution and polypyrrole (ppy) connection, has been proposed for the nickel hexacyanoferrate (Mn-NiHCF/ppy), serving as a model case. Particularly, the theoretical calculation manifests the reduced bandgap and energy barrier for ionic diffusion after Mn substitution, combined with the increased electronic conductivity and integrity through ppy connecting, resulting in enhanced redox kinetics and boosted desalination performance.

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Molybdenum carbide (MoC) has emerged as a promising material for capacitive deionization (CDI), but the poor electrochemical kinetics in conventional MoC owing to the bulk structure and low electric conductivity limit its CDI performance. To address this challenge, herein, we develop a novel strategy to synthesize ultrafine MoC nanocrystals that are embedded within a three-dimensional nitrogen-doped carbon framework (NC/MoC). This synthesis method involves the space-confined pyrolysis of molybdate precursors within metal-organic frameworks (MOFs).

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Article Synopsis
  • Research on interactions between sharks and cetaceans is limited, but a new video shows a shortfin mako shark circling a finless porpoise with a damaged tail.
  • The porpoise appeared healthy but couldn't swim properly due to the injury, and evidence like a bite mark indicates it may have been attacked by the shark.
  • This observation suggests that mako sharks might hunt live cetaceans more frequently than previously believed, despite mostly feeding on small fish and cephalopods.
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This study proposes a sequential liquid dispensing method using a centrifugal microfluidic device operating at a constant rotational speed for the multiplexed genetic detection of nucleic acid targets across multiple samples in a single operation. A pair of passive valves integrated into each microchamber enabled the liquid to fill towards the center of rotation against the centrifugal force, facilitating the complete removal of air inside the microchamber. Liquid manipulation can be achievable without any surface coating of the device by exploiting the inherent hydrophobicity of the polymer.

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Background: The atherogenic characteristics of heterozygous familial hypercholesterolemia (HeFH) increase the risk of premature atherosclerotic cardiovascular disease including not only coronary artery disease but ischemic stroke. Asymptomatic intracranial artery stenosis/occlusion (IASO) is a major cause of ischemic stroke, but it has not yet been fully characterized in patients with HeFH.

Methods And Results: This study analyzed 147 clinically diagnosed subjects with HeFH who underwent magnetic resonance imaging/magnetic resonance angiography imaging for evaluation of IASO (≥50% diameter stenosis).

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Maximizing the utilization efficiency of monatomic Fe sites in Fe-N-C catalysts poses a significant challenge for their commercial applications. Herein, a structural and electronic dual-modulation is achieved on a Fe-N-C catalyst to substantially enhance its catalytic performance. We develop a facile multi-component ice-templating co-assembly (MIC) strategy to construct two-dimensional (2D) arrays of monatomic Fe-anchored hollow carbon nanoboxes (Fe-HCBA) a novel dual-outward interfacial contraction hollowing mechanism.

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Article Synopsis
  • Congenital diaphragmatic hernia (CDH) is a serious condition in newborns with a low survival rate, making it crucial to find ways to predict severe cases before birth.
  • This study discovered four specific microRNAs (miRNAs) in amniotic fluid-derived small extracellular vesicles that can help differentiate between good and poor prognosis in CDH cases, with two miRNAs showing particularly strong predictive abilities.
  • The research also highlighted differences in miRNA profiles between CDH-affected lung tissues and control tissues, suggesting that miRNA levels could provide valuable insights into lung health and help improve prenatal care for CDH patients.
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Lattice strain effects on the piezoelectric properties of crystalline ferroelectrics have been extensively studied for decades; however, the strain dependence of the piezoelectric properties at nano-level has yet to be investigated. Herein, a new overview of the super-strain of nanoporous polycrystalline ferroelectrics is reported for the first time using a nanoengineered barium calcium zirconium titanate composition (BaCa)(TiZr)O (BCZT). Atomic-level investigations show that the controlled pore wall thickness contributes to highly strained lattice structures that also retain the crystal size at the optimal value (<30 nm), which is the primary contributor to high piezoelectricity.

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Aim: Parents' emotions towards a child are extremely important. The Scale of Parent-to-Child Emotions (SPCE) consists of five basic and four self-conscious emotion domains for assessment of parental emotional states. Abridgement of the SPCE is needed for research and clinical settings.

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Norcorrole derivatives with 3,4,5-trialkoxyphenyl moieties at the positions were synthesized to form various stacking assemblies in single crystals and thermotropic liquid crystals (LCs) depending on aliphatic chain lengths. Triple-decker stacking structures were formed the interactions between the antiaromatic systems formed for the butoxy and dodecyloxy derivatives in the single-crystal and LC states, respectively. In particular, the LC state exhibited discotic columnar structures comprising triple deckers to exhibit high electric conductivity, as supported by molecular dynamics simulations.

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The task of segmentation is integral to computer-aided surgery systems. Given the privacy concerns associated with medical data, collecting a large amount of annotated data for training is challenging. Unsupervised learning techniques, such as contrastive learning, have shown powerful capabilities in learning image-level representations from unlabelled data.

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The production of vanillin from biomass offers a sustainable route for synthesizing daily-use chemicals. However, achieving sunlight-driven vanillin synthesis through HO activation in an aqueous environment poses challenges due to the high barrier of HO dissociation. In this study, we have successfully developed an efficient approach for gram-scale vanillin synthesis in an aqueous reaction, employing Mn-defected γ-MnO as a photocatalyst at room temperature.

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Aim: Body mass index and waist circumference are used for obesity diagnosis and screening of visceral fat; however, their evidence in older adults is insufficient. This study investigated the age-specific association of body mass index and waist circumference with metabolic diseases, assessing their applicability as diagnostic criteria for individuals aged ≥65 years.

Methods: Analysis included 46,324 individuals aged ≥18 years, categorized into five age groups: 18-44, 45-54, 55-64, 65-74, and ≥75 years.

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Temperature is essential for the survival and development of eggs. Some anurans have evolved and developed foam nesting traits, with thermal insulation considered to be among their functions. Foam-nesting frogs tend to exhibit reproductive plasticity.

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Intracellular singlet oxygen (O) generation and detection help optimize the outcome of photodynamic therapy (PDT). Theranostics programmed for on-demand phototriggered O release and bioimaging have great potential to transform PDT. We demonstrate an ultrasensitive fluorescence turn-on sensor-sensitizer-RGD peptide-silica nanoarchitecture and its O generation-releasing-storing-sensing properties at the single-particle level or in living cells.

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Article Synopsis
  • - Rhenium(i) complexes, particularly c-[Re(diimine)(CO)(L)], are commonly researched as photocatalysts for CO reduction, but their selective reduction mechanisms are not fully understood despite various studies.
  • - A new supramolecular photocatalyst, RuC2Re, shows exceptional efficiency and selectivity in producing CO during photocatalytic reactions, with key intermediates identified through time-resolved infrared spectroscopy and steady-state irradiation.
  • - The study clarifies the mechanistic steps in the CO reduction process involving RuC2Re and its intermediate RuC2Re(COOH), including kinetics of recovery processes and the formation of side reaction products that may also participate in CO formation.
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Background: The quality of treatment planning for stage III non-small cell lung cancer varies within and between facilities due to the different professions involved in planning. Dose estimation parameters were calculated using a feasibility dose-volume histogram (FDVH) implemented in the treatment planning quality assurance software PlanIQ. This study aimed to evaluate differences in treatment planning between occupations using manual FDVH-referenced treatment planning to identify their characteristics.

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Here we report a comparative study on the bottom-up synthesis of multi-element hydroxides composed of Mg, Al, Fe and Zn cations to understand the role of solvents. Two common solvents, water and ethylene glycol, a typical polyol, are used. The polyol-derived MgAlFeZn-OH are nanosheets with homogeneous elemental distribution, while the hydrothermal-derived MgAlFeZn-OH are mixtures of plate-like hydroxide layers and rod-like spinel oxides.

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Background: Primary ovarian insufficiency (POI) is characterized by the development of hypergonadotropic hypogonadism before 40 years of age and leads to intractable infertility. Although in vitro fertilization and embryo transfer with donated eggs enables pregnancy, not a few patients desire pregnancy using their oocytes. However, follicular development is rare and unpredictable in patients with POI.

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Article Synopsis
  • The study focuses on creating an automated detection system for thoracic ossification of the posterior longitudinal ligament (OPLL) using deep learning and X-ray images, as early symptoms are often undetected leading to poor treatment outcomes.
  • Researchers analyzed data from 146 patients with thoracic OPLL and 150 control cases, using plain lateral radiographs for training and validation of the detection model.
  • The system achieved an accuracy of 83.4%, surpassing the accuracies of two spine surgeons, indicating its potential to enhance diagnostic accuracy for thoracic OPLL.
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