396 results match your criteria: "the University of Shiga Prefecture[Affiliation]"

Article Synopsis
  • - A compact photovoltaic power generation system designed for mobile use was created, featuring a SiC integrated converter that enables efficient energy conversion at around 200 W.
  • - The SiC inverter provided higher DC-AC conversion efficiency compared to traditional silicon inverters, while also housing a lightweight Li-ion battery within the same unit—keeping the total weight under 6 kg.
  • - The system demonstrated stable power output during operation, even in varying weather conditions, although efficiency decreased slightly due to losses from the maximum power point tracking device.
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The absorption of vitamin B is a complex process involving gastric acid and intrinsic factor as the indispensable components. In this study, we have investigated the effects of the administration site in enteral feeding on vitamin B status in subjects with severe motor and intellectual disabilities (SMID). This is a cross-sectional study conducted from January to June 2016.

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A structurally constrained S,C,C-bridged triphenylamine was synthesized, and the corresponding radical cation was obtained as a hexachloroantimonate by chemical oxidation. An X-ray crystallographic analysis revealed an almost planar structure for this radical cation, which thus represents the first example of a planar, -unsubstituted triphenylamine radical cation analogue with a sulfur bridge. The electronic properties of the radical cation were examined by UV-vis-NIR and ESR spectroscopy as well as DFT calculations.

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A fundamental understanding of the effect of a crosslinker on gel properties is important for the design of novel soft materials because a crosslinking is a key component of polymer gels. We focused on post-polymerization crosslinking (PPC) system utilizing activated ester chemistry, which is a powerful tool due to structural diversity of diamine crosslinkers and less susceptibility to solvent effect compared to conventional divinyl crosslinking system, to systematically evaluate the crosslinker effect on the gel properties. A variety of alkyldiamine crosslinkers was employed for the synthesis of poly(-isopropylacrylamide) (PNIPAAm) gels and it was clarified that the length of alkyl chains of diamine crosslinkers strongly affected the gelation reaction and the swelling behavior.

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Uterine cervical cancer is the fourth most common cancer in women, and its etiology has been recognized. High-risk human papilloma virus (HR-HPV) infection induces an opportunity for malignant transformation. This paper discusses the current issues based on a review of the literature and compares the impact of the dietary and nutrient intake to the impact of tobacco smoking on cervical cancer development.

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Article Synopsis
  • Cisplatin is a common chemotherapy drug that can cause kidney damage (nephrotoxicity), and megalin, a receptor in kidney cells, plays a role in this process.
  • A study involving 45 patients with lung cancer aimed to find a link between the levels of a specific form of megalin in urine (A-megalin) and kidney damage after cisplatin treatment.
  • Results indicated that higher baseline urinary A-megalin levels were associated with a greater decline in kidney function, suggesting it could be a useful biomarker for monitoring kidney health in patients undergoing cisplatin chemotherapy.
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  • Dietary acid load may influence the progression of chronic kidney disease (CKD), but specific food associations are unclear.
  • A study using a diet history questionnaire analyzed dietary habits among CKD patients to understand the impact of various foods on dietary acid load.
  • Findings suggest that higher net endogenous acid production (NEAP) is linked to lower potassium and higher protein intake, and is associated with a greater decline in kidney function, while lower consumption of fruits and vegetables contributes to higher NEAP levels.
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The Japanese diet (JD) is accepted as a healthy dietary pattern, which has protective effects against cancer and cardiovascular diseases. However, it remains unclear whether there is any association between the JD and fecal microbiota composition. This cross-sectional study examined the relationship between JD scores and fecal microbiota in young Japanese adults, through the analysis of fecal microbiota using the terminal restriction fragment length polymorphism (T-RFLP) method.

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Energy transformation cost for the Japanese mid-century strategy.

Nat Commun

October 2019

Center for Social and Environmental Systems Research, National Institute for Environmental Studies (NIES), 16-2 Onogawa, Tsukuba, Ibaraki, 305-8506, Japan.

The costs of climate change mitigation policy are one of the main concerns in decarbonizing the economy. The macroeconomic and sectoral implications of policy interventions are typically estimated by economic models, which tend be higher than the additional energy system costs projected by energy system models. Here, we show the extent to which policy costs can be lower than those from conventional economic models by integrating an energy system and an economic model, applying Japan's mid-century climate mitigation target.

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Article Synopsis
  • The gut microbiota that we have from when we are babies can affect our health for a long time.
  • Breast milk contains special sugars called HMOs that help good bacteria grow in babies' tummies.
  • A study found that a specific transporter (FL transporter-2) helps these good bacteria thrive by effectively using HMOs in breast milk.
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Patients with leg lymphedema sometimes suffer under constraint feeling leg heaviness and pain, requiring lifelong treatment and psychosocial support after surgeries or radiation therapies for gynecologic cancers. We herein review the current issues (a review of the relevant literature) associated with recently developed diagnostic procedures and treatments for secondary leg lymphedema, and discuss how to better manage leg lymphedema. Among the currently available diagnostic tools, indocyanine green lymphography (ICG-LG) can detect dermal lymph backflow in asymptomatic legs at stage 0.

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We investigated the addition of alkali metal elements (namely Na, K, Rb, and Cs) to Cu-modified CHNHPbI Cl photovoltaic devices and their effects on the photovoltaic properties and electronic structure. The open-circuit voltage was increased by CuBr addition to the CHNHPbI Cl precursor solution. The series resistance was decreased by simultaneous addition of CuBr and RbI, which increased the external quantum efficiencies in the range of 300-500 nm, and the short-circuit current density.

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The Effects of the Dietary and Nutrient Intake on Gynecologic Cancers.

Healthcare (Basel)

July 2019

Department of Women's Health, Graduate School of Human Nursing, The University of Shiga Prefecture, Shiga 522-8533, Japan.

The contribution of diet to cancer risk has been considered to be higher in advanced countries than in developing countries. In this paper, I review the current issues (a review of the relevant literature), and the effects of the dietary and nutrient intake on three types of gynecologic cancer (cervical, endometrial and ovarian cancers). In cervical cancer, the most important roles of diet/nutrition in relation to cancer are prophylaxis and countermeasures against human papillomavirus (HPV) infection.

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A genetic transformation system was developed for the selective white rot basidiomycete Ceriporiopsis subvermispora using a modified protocol with polyethylene glycol and CaCl treatment of the protoplasts and plasmids harboring recombinant hygromycin phosphotransferase (hph) driven by a homologous promoter. During repeated transfer on fresh potato dextrose agar plates containing 100 µg/ml hygromycin B, most transformants lost drug resistance, while the remaining isolates showed stable resistance over five transfers. No drug-resistant colonies appeared in control experiments without DNA or using a promoter-less derivative of the plasmid, indicating that a transient expression of the recombinant hph was driven by the promoter sequence in these unstable drug-resistant transformants.

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Fish and meat intakes and prevalence of anemia among the Japanese elderly.

Asia Pac J Clin Nutr

January 2020

Department of Food Science and Nutrition, School of Human Science and Environment, The University of Hyogo, Himeji, Japan.

Background And Objectives: Information about an association between animal food intakes and risk of anemia is still limited. This study aimed to investigate the association between fish and meat intake and anemia risk in the Japanese elderly.

Methods And Study Design: A nationally representative sample of 6,469 aged 65 years and over was obtained from pooled data of annual National Health and Nutritional Survey in Japan during 2002-2011.

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Ultrafast thermal-free photoluminescence of coherently extended single quantum states.

Sci Rep

June 2019

Department of Physics and Electronics, Osaka Prefecture University, 1-1 Gakuencho, Naka-ku, Sakai, Osaka, 599-8531, Japan.

The coherent volume of single quantum states of matter is typically smaller than that of photons by several orders of magnitude, and hence, interactions between photons and single quantum states are normally very weak. This limits the speed of radiative decay of matter states in free space. Recent efforts to speed-up radiative processes have been focused on creating a small mode volume of photons using cavity systems, or on realizing spontaneous synchronization among quantum emitters to create a dipole at the macroscopic scale, which accelerates photon emission up to a couple of hundred femtoseconds.

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Inhomogeneity of sediment samples in analysis of hexabromocyclododecane.

Environ Monit Assess

June 2019

Department of Biological Resources Management, School of Environmental Science, The University of Shiga Prefecture, 2500 Hassaka-cho, Hikone, Shiga, 522-8533, Japan.

The repeatability test of the analytical method for hexabromocyclododecane (HBCD) was conducted with sediment sample. The maximum HBCD concentration exceeded the minimum by a factor of 90 even though the identical sediment samples were used. Therefore, we examined which step of the analytical method was the factor causing variability.

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This study aims to reveal the full potential of ZnO as an ultrafast photofunctional material. Based on nonlocal response theory to incorporate the spatially inhomogeneous quality of the samples coupled with experimental observations of linear and nonlinear optical responses, we establish the ultrafast radiative decay of excitons in ZnO thin films that reaches the speed of excitonic dephasing at room temperature in typical semiconductors at a couple tens of femtoseconds. The consistency between the observed delay-time dependence of the transient-grating signals and the theoretical prediction reveals that the ultrafast radiative decay is due to the synergetic effects of the giant light-exciton interaction volume and the radiative coupling between multicomponent excitons.

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Cla4 PAK-like kinase is required for pathogenesis, asexual/sexual development and polarized growth in Bipolaris maydis.

Curr Genet

October 2019

Laboratory of Environmental Mycoscience, Graduate School of Agriculture, Kyoto University, Kyoto, 606-8502, Japan.

PAK (p21-activated protein kinases)-like kinases are master regulators of development and morphogenesis, which were conserved among eukaryotes, including fungi. In budding yeast, two types of PAK-like kinases, Ste20 and Cla4 have distinct but shared roles in the regulation of pseudohyphal development, budding and mating. In this study, to examine the broad functions of PAK-like kinases in growth, pathogenicity and asexual/sexual reproduction in filamentous fungi, we identified and characterized two PAK-like kinases, Ste20 and Cla4 in Bipolaris maydis.

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Identifying nonpoint phosphorus (P) sources in a watershed is essential for addressing cultural eutrophication and for proposing best-management solutions. The oxygen isotope ratio of phosphate (δO) can shed light on P sources and P cycling in ecosystems. This is the first assessment of the δO distribution in a whole catchment, namely, the Yasu River Watershed in Japan.

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Few studies have investigated the association between dietary intake and blood concentrations of water-soluble vitamins in patients with ulcerative colitis (UC). In the present study, vitamin concentrations were measured in the blood and urinary excretion of 23 outpatients with UC and compared against a control group of 20 healthy participants. A weighed food record procedure was used to ensure controlled macronutrient and vitamin intakes of the UC cohort.

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Lake expansion that leads to the formation of new habitats has potential to drive intralacustrine diversification. The ancient Lake Biwa in central Japan has historically experienced substantial changes in the lake size, and it provides a useful system for evaluating the role of lake-size fluctuations in the diversification of endemic fauna. Here, we used genome-wide DNA analyses and reconstructed the diversification history of the endemic freshwater snails belonging to the subgenus with respect to the geological history of Lake Biwa.

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Cloaking and scattering cancellation of electromagnetic waves have attracted much attention since they allow control of rf and light waves and are of scientific interest. The analytical results demonstrated in this paper reveal that plasmonic cloaking, which is one of the schemes for scattering cancellation, occurs in the vicinity of Tonks-Dattner resonances in the frequency domain, where resonances enhance wave scattering. This antiresonance-resonance pair for cloaking and scattering is cross-correlated by the symmetrical locations above and below the electron plasma frequency, respectively.

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Chitosan/calcium carbonate core-shell type composite microparticles were fabricated via a biomineralization-inspired process with chitosan particles as starting materials. The obtained composite particles were spherical, and the diameter of the composite particles was larger than that of the chitosan particles. XRD measurement indicated that the shell of the composite particle had a crystalline structure.

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Acute liver failure increases kynurenic acid production in rat brain via changes in tryptophan metabolism in the periphery.

Neurosci Lett

May 2019

Department of Nutrition, School of Human Cultures, The University of Shiga Prefecture, 2500 Hassaka, Hikone, Shiga, 522-8533, Japan. Electronic address:

The tryptophan metabolite, kynurenic acid (KYNA), is a preferential antagonist of the α7 nicotinic acetylcholine receptor and N-methyl-d-aspartic acid receptor at endogenous brain concentrations. Recent studies have suggested that increased brain KYNA levels are involved in psychiatric disorders such as schizophrenia and depression. Most of the brain kynurenine (KYN), the KYNA precursor, comes from the periphery, and the liver has a central role in the peripheral tryptophan metabolism.

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